The CD covers the following subjects:
001-061 Minerals And Mineral Identification
001 - Quartz Crystals
Other Hopkins Technology Products
©1986-2012 Hopkins Technology, LLC ---
38.107.179.242 173.11.45.19
062-069 Drilling & Mining
070-090 Sedimentary Rocks
091-111 Igneous Rocks
112-125 Metamorphic Rocks
126-141 Sedimentary Features
142-163 Weathering
164-184 Mass Movement
185-223 Active Glaciers
224-265 Features Of Alpine Glaciation
266-316 Features Of Continental Glaciation
317-356 Wind Erosion And Desert Features
357-422 Running Water
423-442 Caves And Ground Water
443-460 Karst Features
461-508 Diastrophism (Structural Geology)
509-514 Earthquakes
515-569 Igneous Features
570-586 Geothermal Features
587-631 Shorelines
632-653 Mountains And Plateaus
Each topic has a photograph and 100 have videos 
002 - Quartz Displaying Conchoidal Fracture
003 - Quartz Varieties (L To R): Milky; Rock Crystal; Rose Quartz
004 - Orthoclase Feldspar
005 - Plagioclase Feldspar
006 - Microcline Feldspar Crystals
007 - Muscovite
008 - Muscovite Displaying Cleavage In One Direction
009 - Biotite
010 - Chlorite
011 - Hornblende
012 - Augite
013 - Olivine
014 - Garnet
015 - Garnet Crystals
016 - Common Calcite (L) And Iceland Spar
017 - Calcite Reacting With Acid
018 - Iceland Spar Displaying Double Refraction
019 - Dolomite Displaying Rhombohedral Cleavage
020 - Streak Of Pyrite
021 - Cubic Pyrite Crystals With Striated Faces
022 - Chalcopyrite (L) And Pyrite
023 - Magnetite Displaying Magnetic Properties
024 - Streak Of Hematite
025 - Hematite Varieties (L To R): Oolytic, Massive, And Specular
026 - Limonite
027 - Beryl Crystal
028 - Stibnite Crystals
029 - Cassiterite Crystals
030 - Molybdenite
031 - Cinnabar
032 - Bauxite
033 - Cubic Galena Crystals
034 - Sphalerite
035 - Streak Of Sphalerite
036 - Hardness Test On Talc
037 - Talc
038 - Kaolinite Displaying Earthy Fracture
039 - Orthorhombic Sulfur Crystals
040 - Sulfur
041 - Massive Graphite
042 - Halite Crystals
043 - Halite Displaying Cubic Cleavage
044 - Anhydrite
045 - Hardness Test On Gypsum (See Image 090)
046 - Monoclinic Selenite Gypsum Crystals
047 - Serpentine
048 - Chrysotile Serpentine Displaying Fibrous Fracture
049 - Native Copper
050 - Azurite (Blue) And Malachite (Green)
051 - Rhodochrosite
052 - Apatite Crystals
053 - Fluorite Crystals
054 - Hexagonal Corundum Crystal
055 - Corundum Scratching Quartz
056 - Gold On Quartz
057 - Diamond
058 - Mexican Agate
059 - Turquoise
060 - Opal Displaying Iridescence
061 - Minerals Displaying Fluorescence Under Uv Light
062 - Oil Drilling Rig, Wyoming
063 - Oil Well Pump, Montana
064 - Oil Pipeline, Alaska
065 - Coal Seam, Nw Colorado
066 - Underground Mine, Colorado
067 - Open Pit Copper Mine, Arizona
068 - Gypsum Mine, Wyoming
069 - Granite Quarry, Wisconsin
070 - Photomicrograph Of Moon Rock Thin Section
071 - Conglomerate
072 - Conglomerate With Pebbles, Ironwood, Mi
073 - Conglomerate With Cobbles And Boulders, Olga Mts, Australia
074 - Breccia
075 - Arkose
076 - Sandstones
077 - Siltstone
078 - Shale Varieties With Fossils
079 - Thin-Bedded Shale, Sw Colorado
080 - Fossiliferous Limestone (L), Shale (Front) And Dolomite
081 - Limestone, E-Central Wisconsin
082 - Coquina
083 - Pisolitic Limestone
084 - Dolomite (Dolostone)
085 - Calcareous Tufa
086 - Tufa Pinnacles, Mono Lake, Ca
087 - Rock Salt
088 - Salt In Evaporite Environment, Salina Canyon, Ut
089 - Rock Gypsum
090 - Gypsum Layer, Central Utah
091 - Pumice
092 - Pumice Outcrop, Crater Lake Np, Wa
093 - Scoria
094 - Obsidian
095 - Obsidian Outcrop, Yellowstone Np, Wy
096 - Rhyolite
097 - Andesite
098 - Basalt (See Image 530)
099 - Basalt On Columbia Plateau, Soap Lake, Wa
100 - Dacite
101 - Granite Outcrop, Crivitz, Wi
102 - Granite (L) And Syenite
103 - Granite At Mount Rushmore, Sd
104 - Gabbro
105 - Close-Up Of Gabbro
106 - Diorite
107 - Diorite Porphyry
108 - Rhyolite Porphyry
109 - Quartz Monzonite Porphyry
110 - Pegmatite
111 - Pegmatite Outcrop, Big Thompson Canyon, Co
112 - Stretch-Pebble Conglomerate
113 - Marble
114 - Quartzite
115 - Slate
116 - Slaty Cleavage, Banff Np, Alberta
117 - Schist
118 - Talc Schist
119 - Mica Schist With Garnets
120 - Schist Outcrop, Southeast Vermont
121 - Gneiss
122 - Gneiss Outcrop, Big Horn Mts, Wy
123 - Serpentine
124 - Migmatite Outcrop, Big Falls, Wi
125 - Bituminous Coal (L) And Anthracite
126 - Graded Bedding, Northern Wisconsin
127 - Sorted Sediment, Se Wisconsin
128 - Sedimentary Strata, Guadalupe Mts, Tx
129 - Cross-Bedding In Sand, Spring Valley, Wi
130 - Cross-Bedding In Sandstone, Paria Canyon, Ut
131 - Ripple Marks In Sand
132 - Ripple Marks On Sandstone, Banff Np, Alberta
133 - Modern Mudcracks, Death Valley, Ca
134 - Mudcracks In Shale, Glacier Np, Mt
135 - Raindrop Impressions In Sandstone, Utah
136 - Boulder Filling In Old Stream Channel, Taos, Nm
137 - Channel Sandstone, Central Utah
138 - Clastic Dike Filling Fracture, Badlands, Sd
139 - Concretions, Yukon
140 - Geode
141 - Large Septarium With Calcite In Cracks, New Zealand
142 - Mechanical Weathering Of Granite, Wind River Range, Wy
143 - Results Of Mechanical Weathering, Brooks Range, Ak
144 - Frost Wedging In Limestone
145 - Vertical And Horizontal Joints In Limestone, Se Wisconsin
146 - Weathering Along Vertical Joints In Limestone, Tennessee
147 - Results Of Weathering Along Vertical Joints, Bryce Canyon, Ut
148 - Plant Roots In Rock, Wyoming
149 - Lichen On Rock
150 - Solution Grooves In Limestone Of Òstone Forestó, China
151 - Honeycomb Weathering Of Sandstone, Moab, Ut
152 - New Copper Replacing Chemically Weathered Copper
153 - Jointing And Early Stage Of Spheroidal Weathering
154 - Advanced Spheroidal Weathering
155 - Granite Boulders Produced By Spheroidal Weathering, Central Wisconsin
156 - Exfoliation, Big Thompson Canyon, Co
157 - Exfoliation Domes, Yosemite Np, Ca
158 - Exfoliation Dome, Stone Mountain, Ga
159 - Differential Weathering Of Vertical Rock Layers, Tennessee
160 - Resistant Cap Rock Protecting Underlying Sandstone From Wea - Hering, Roosevelt Np, Nd
161 - Balanced Rock In Horizontal Layers, Arches Np, Ut
162 - Sand Particles
163 - Clay Particles
164 - Talus Slope, Utah
165 - Talus Cones, Banff Np, Alberta
166 - Snow Avalanche
167 - Small Snow Avalanche, Alberta
168 - Avalanche Tracks, Kootenay Np, Bc
169 - Snow Barriers To Protect City From Avalanches, Honnigsvag, Nor - Ay
170 - Rockfall, Arches Np, Ut
171 - Gros Ventre Landslide, Wy
172 - Frank Landslide Scar, Alberta
173 - 1983 Landslide, Photographed In 1994, Thistle, Ut
174 - Landslides Along Highway 1, Northern California
175 - Drainage Pipes For Landslide Prevention, Fort Bragg, Ca
176 - Rock Glide (Slumping), Utah
177 - Slump Scarp On Cliff, New Zealand
178 - Slumping Causing Highway To Disappear, Southern Ca
179 - Debris Flow, Costa Rica
180 - Debris Left From Mudflow (Debris Flow), Central Utah
181 - Evidence Of Creep, Michigan
182 - Soil Creep And Solifluction, Central Ireland
183 - Trees Giving Evidence Of Sliding, San Louis Obispo, Ca
184 - Rock Glacier, Sierra Nevada Mts, Ca
185 - High Altitude View Of Glacier System, Rident Glacier, Alaska
186 - Alpine Glacier, Harrison Glacier, Glacier Np, Mt
187 - Medial Moraines From Tributaries To Gorner Glacier, Switzerland
188 - Hanging Glaciers Above Bear Glacier, Kenai Fjords Np, Ak
189 - Glacier In Hanging Valley, Antarctica
190 - Hanging Valleys Above Main Glacier, Antarctica
191 - Annual Layers In Glacial Ice, Alaska
192 - Isoclinal Fold Gives Evidence To Plastic Flow, Antarctica
193 - Pedestal Rock On Glacial Ice
194 - Bergschrund At Head Of Glacier, Sierra Nevada Mts, Ca
195 - Transverse And Radial Crevasses, Cascades, Washington
196 - Transverse Crevasses, Yukon
197 - Radial Crevasses, Davidson Glacier, Alaska
198 - Crevasse On Athabasca Glacier, Jasper Np, Alberta
199 - Crevasse With Geologist Chipping Ice
200 - Crevasse On Grinnel Glacier, Glacier Np, Mt
201 - Muldrow Glacier With Medial Moraines, Denali Np, Ak
202 - Kettles And Thick Debris On Surface Of Tasman Glacier, New Zealand
203 - Outwash And Medial Moraines, Casement Glacier, Glacier Bay Np, Ak
204 - Meltwater Lake Of Sourdough Glacier, Wind River Range, Wy
205 - Front Of Riggs Glacier, Glacier Bay Np, Ak
206 - Medial Moraine On Muir Glacier, Glacier Bay Np, Ak
207 - Icebergs At Front Of Muir Glacier, Glacier Bay Np, Ak
208 - Ice Front Lake Of Mcbride Glacier, Glacier Bay Np, Ak
209 - Icebergs Formed From Calving, Portage Glacier, Ak
210 - Terminus Of Ajalik Glacier, Kenai Fjords Np, Ak
211 - End Moraine Of Athabasca Glacier, Jasper Np, Alberta
212 - End Moraine Of South Twin Glacier, Greenland
213 - Front Of Creeping Glacier, Alaska
214 - Meltwater In Surface Channel Of Glacier, Arctic Nwr, Ak
215 - Ice Cave, Mt Rainier Np, Wa
216 - Interior Of Ice Cave, Rhone Glacier, Switzerland
217 - Snow Bridge, Mt Rainier Np, Wa
218 - Ice Cave With Part Of Roof Gone, Mt Rainier Np, Wa
219 - Meltwater From Athabasca Glacier, Jasper Np, Alberta
220 - Meltwater Stream From Nisqually Glacier, Mt Rainier Np, Wa
221 - Delta From Meltwater Stream Of Peyto Glacier, Banff Np, Alberta
222 - Plume Of Glacier Milk At Delta Of Peyto Glacier, Banff Np, Alberta
223 - Fine, Suspended Glacial Sediment Giving Color To Moraine Lake, Banff Np, Alberta
224 - Cirque, Brooks Range, Ak
225 - Cirque, British Columbia
226 - Cirques, Estes Park, Co
227 - Cirque Lake, Teton Range, Wyoming
228 - Cirque Lake, Northern Norway
229 - Cirque Lake, Sierra Nevada Mts, Ca
230 - U-Shaped Valley, Beartooth Plateau, Wy
231 - U-Shaped Valley With Braided Stream, Haines, Ak
232 - Pater Noster Lakes, Glacier Np, Mt
233 - Tarns, Sierra Nevada Mts, Ca
234 - Main Glacial Valley, Yosemite Valley, Yosemite Np, Ca
235 - Hanging Valley, Bridal Veil Falls, Yosemite Np, Ca
236 - Hanging Valleys And Cirques, Sierra Nevada Mts, Ca
237 - Hanging Valleys, Jasper Np, Alberta
238 - Horn, The Matterhorn, Switzerland
239 - Horn, Glacier Np, Mt
240 - Aretes, Glacier Np, Mt
241 - Fiorded Coastline, Northern Norway
242 - Fiord (Fjord), Northern Norway
243 - Fiord, Muir Inlet, Ak
244 - Glacial Striations On Bedrock, Jasper Np, Alberta
245 - Striations, Athabasca Glacier, Alberta
246 - Striations And Grooves, Glacier Np, Mt
247 - Glacial Polish, Yosemite Np, Ca
248 - Glacial Polish On Columnar Basalt, Devils Postpile, Ca
249 - Concentric Gouges Indicating Ice Movement Left To Right, Sierra Nevada Mts Ca
250 - Roche Moutonnee Indicating Ice Movement Right To Left, Rocky Mt Np, Co
251 - Glacial Till, Montana
252 - Till, Arctic Nwr, Alaska
253 - Striations On Cobble In Glacial Till, Colorado
254 - Glacial Erratics On Polished Bedrock, Yosemite Np, Ca
255 - Erratic, Cadillac Mt, Maine
256 - Lateral Moraines And Fan, Alaska
257 - Lateral Moraine, Athabasca Glacier, Alberta
258 - Lateral Moraine, Nisqually Glacier, Mt Rainier, Wa
259 - Nested Recessional Moraines
260 - Recessional Moraine, Athabasca Glacier, Alberta
261 - Glacial Valley Floor Dissected By Stream, Norway
262 - Arete Separating Cirques On Topo Map, Chief Mountain, Mt
263 - Cirque Lake And U-Shaped Valley On Topographic Map, Holy Cross, Co
264 - Hanging Valley On Topographic Map, Katahdin, Maine
265 - Horn On Topographic Map, Chief Mountain, Mt
266 - Satellite View Of Finger Lakes, New York
267 - Glacial Scouring, Northern Minnesota
268 - Fiord-Like Valley, Somes Sound, Maine
269 - Roche Moutonnee Indicating Ice Movement Right To Left, Maine
270 - Roche Moutonnee Island, Nordland, Norway
271 - Glacially Carved Islands, Nordland, Norway
272 - Glacial Striations In Three Directions, Valders, Wi
273 - Glacial Groove, San Juan Islands, Wa
274 - Chatter Marks On Limestone Indicating Ice Movement Toward Top, Lan - On, Wi
275 - Contour Farming Displaying Shape Of Drumlin, Se Wisconsin
276 - Drumlin Indicating Ice Movement Right To Left, Se Wisconsin
277 - Drumlin In Tidal Marsh, Boston, Ma
278 - Drumlin Swarm, Campbellsport, Wi
279 - Drumlin Swarm In Lake Sinissippi, Wi
280 - Till, Se Wisconsin
281 - Striations On Cobble In Till, Slinger, Wi
282 - Erratics, Central Wisconsin
283 - Erratics, North-Central Wisconsin
284 - Outwash Deposit, Gaspe Peninsula, Quebec
285 - Ground Moraine, Kewaskum, Wi
286 - Interlobate Moraine, Dundee, Wi
287 - Glacial Lake Bed, S Manitoba
288 - Varves, Eastern Wisconsin
289 - Varves, Windsor, Ct
290 - Terminal Moraine Area With Unglaciated On Right, Whitewater, Wi
291 - Outwash Plain With Terminal Moraine Near Horizon, Whitewater, Wi
292 - Kettle Lakes On Pitted Outwash Plain, Se Wisconsin
293 - Kettle Lakes On Pitted Outwash Plain, North Dakota
294 - Kettles, Dundee, Wi
295 - Kettle, Greenbush Kettle, Greenbush, Wi
296 - Kettle, Kewaskum, Wi
297 - Kettle Lake, Se Wisconsin
298 - Kettle Lakes, Se Wisconsin
299 - Kame, Dundee, Wi
300 - Kame, Kewaskum, Wi
301 - Kame, Kewaskum, Wi
302 - Stratification In Kame Of Image 301
303 - Esker, Dundee, Wi
304 - Esker, Northwest Territories
305 - Cutaway Of Esker, Central Ireland
306 - Crevasse Fill, Holy Hill, Wi
307 - Route Of Glacial River During Ice Age, Shelby, Mt
308 - Pothole From Glacial Meltwater, Archibald Pothole Sp, Pa
309 - Abandoned Waterfall From Ice Age, Dry Falls, Wa
310 - Buried Pre-Glacial Vegetation From Ice Age, Two Creeks, Wi
311 - Terraces From Abandoned Shoreline Of Lake Bonneville, Salt Lake, Ut
312 - Ground Moraine With Deranged Drainage, Random Lake, Wi
313 - Remnant Of Glacial Lake, Cedarburg Bog, Wisconsin
314 - Drumlin On Topographic Map, Cedarburg, Wi
315 - Kames On Topographic Map, Kewaskum, Wi
316 - Abandoned Shoreline On Topographic Map, Sturgeon Bay, Wi
317 - Dust Storm, White Sands Nm, Nm
318 - Ripple Marks (Sand Ripples) On Dunes, Death Valley, Ca
319 - Grass Stabalizing Sand Movement, A Small Wind-Shadow, Outer Ban - S, Nc
320 - Sangre De Cristo Mts Acting As Dune Barrier, Great Sand Dunes Nm, Co
321 - Migrating Sand Removal, White Sands Nm, Nm
322 - Sand Dunes With Steep Leeward Face (Slip Face) On Right, Death Val - Ey, Ca
323 - Satellite View Of Transverse Dunes, Northwest Africa
324 - Satellite View Of Longitudinal Dunes, Sahara Desert
325 - Satellite View Of Linear Dunes, Sahara Desert
326 - Star Dunes, Southern Iran
327 - Parabolic And Seif Dunes, Thar Desert, India
328 - Barchan Dune Nearly One Mile Long, Pakistan
329 - Barchan, Central Utah
330 - Irregular Barchans, Southeast Iran
331 - Stabalized Dunes, Sandhills Region, Nebraska
332 - Deflation Basins, Lake Michigan Shoreline, Wi
333 - Loess Bluffs, Vicksburg, Ms
334 - Loess, Northcentral China
335 - Pedestal Rock (Balance Rock), Moab, Ut
336 - Pedestal Rock, Southeast Iran
337 - Yardang, Wind-Shaped Rock, Northcentral New Mexico
338 - Pitted Yardang, Southwest Afghanista
339 - Ventiface, Death Valley, Ca
340 - Ventifact, Antarctica
341 - Ventifact (Windkanter), Antarctica
342 - Desert Pavement, Ne Arizona
343 - Desert Pavement, Cameron, Az
344 - Rock Alignment Due To Strong Winds, Sw Afghanistan
345 - Deflation Basins, New Mexico
346 - Playa Lake In Graben, Death Valley Nm, Ca
347 - Salt Pool, Death Valley, Ca
348 - Salt Pan (Dry Lake), Simpson Desert, Australia
349 - Salt Pan, Devilõs Golf Course, Death Valley Nm, Ca
350 - Ephemeral Stream In Sand Dune Mass, S Afghanistan
351 - Coalescing Alluvial Fans (Bajada), Iran
352 - Wind-Blown Plain With Inselbergs, S Afghanistan
353 - Aerial Of Inselbergs, Central Saudi Arabia
354 - Desert Varnish, Moab, Ut
355 - Wind Blown Rock, Racetrack Playa, Death Valley, Ca
356 - Arch In Sandstone, Arches Np, Ut
357 - Sheet Runoff, Northern Illinois
358 - High-Gradient Stream, Yellowstone R, Wyoming
359 - Low-Gradient Stream, Katmai, Ak
360 - Divides, Iran
361 - Dendritic Drainage Pattern, New Mexico
362 - Modified Trellis Drainage Pattern, Hindu Kush, Afghanistan
363 - V-Shaped Valley, Equador
364 - Canyon, Devilõs Canyon, Wyoming
365 - Dry Wash, Moab, Ut
366 - Wash, Antelope Slot Canyon, Arizona
367 - Valley Widening By Sidecutting, Shoshone R, Cody, Wy
368 - Valley Widening By Mass Wasting, Zion Np, Ut
369 - Erosion And Deposition At Meander, Zion Np, Ut
370 - Bank Erosion, Rat River, Yukon
371 - Meandering Stream With Oxbow Lakes, Wyoming
372 - Sidecutting In Meander, Western Wyoming
373 - River Plain And Valley Walls, Colorado R, Fruita, Co
374 - Deep Water On Outside Of Meander, Rocky Mt Np, Co
375 - Meanders, Porcupine R, Alaska
376 - Meander Scrolls, Iran
377 - Meander Near Cutoff, Se Wisconsin
378 - Cutoff Of Meander, Se Wisconsin
379 - Flooded River Plain, Central Luzon, Phillipines
380 - Flooding, Salt River, Arizona
381 - Artificial Levee, W Illinois
382 - Levee Wall, Morgan City, La
383 - Levees, Rio Grande R, Albuquerque, Nm
384 - Erosion Of Bed By Abrasion, Great Smoky Mts, Nc
385 - Potholes In River Bed, Shelbourne, Ma
386 - Waterfall, Iguaza Falls, Brazil/Argentina
387 - Plungepool, Ptarmigan Falls, Glacier Np, Mt
388 - Rapids, Peace R, Alberta
389 - Rapids, Fondulac R, Saskatchewan
390 - Waterfall With Gorge, Niagara Falls, New York
391 - Horizontal Bedding In Sand Bars, Peace R, Alberta
392 - Crossbedding Of Alluvium, Mackenzie R Delta, Northwest Territories
393 - Alluvial Fan, Death Valley, Ca
394 - Coalescing Fans, Sandia Mts, Nm
395 - Fan, Cedar Creek Alluvial Fan, Ennis, Mt
396 - Cross-Section Of Alluvial Fan, Central Utah
397 - Fan (Scree Slope), Southern Alps, New Zealand
398 - Satellite View Of Braided Stream, Brahmaputra R, India
399 - Braided Stream, Animas R, Silverton, Co
400 - Braided Stream, Yukon R, Alaska
401 - Braided Stream, Denali Np, Ak
402 - Braided Stream, Kicking Horse R, Yoho Np, Bc
403 - Braided Stream, Alaska
404 - Delta, Padre Isle, Tx
405 - Satellite View Of Delta, Yukon R, Ak
406 - Delta Of Tundra Stream, Yukon
407 - Satellite View Of Delta, Nile Delta, Egypt
408 - Satellite View Of Delta, Colorado R, Mexico
409 - Mouth Of Waiau R, Christchurch, New Zealand
410 - Water Gap, Delaware Water Gap, Stroudsburg, Pa
411 - River Terraces, Madison R, Sw Montana
412 - Terraces Over Snake R, Grand Teton Np, Wy
413 - Fans And Terraces, South Island, New Zealand
414 - Rejuvenated River, San Juan R, Bluff, Ut
415 - Entranched Meanders, Goosenecks Of San Juan R, Utah
416 - Entrenched Meander, San Juan R, Utah
417 - Natural Bridge, Rainbow Bridge, Utah
418 - V-Shaped Valley On Topo Map, Colorado
419 - Divide On Topo Map, Mt Mitchell, Nc/Tn
420 - Alluvial Fan On Topo Map, Ennis, Mt (S - E Image 395)
421 - Waterfall And Gorge On Topo Map, Niagara Falls, Ny (See Image 390 -
422 - Water Gap On Topo Map, Cumberland, Md
423 - Natural Cave Entrance, Carlsbad Caverns, Nm
424 - Life-Line Of Limestone Cave, Cave Of The Mounds, Wi
425 - Stalactites And Stalagmites, Carlsbad Caverns, Nm
426 - Longitudinal-Section Of Stalactite Showing Down-And-Outward Gro - Th
427 - Cross-Section Of Stalactite Showing Hollow Center And Growth Rings
428 - Helictites, Lehmann Cave, Nv
429 - Soda Straw Stalactites, Caverns Of Sonora, Tx
430 - Stalactite And Stalagmite, Cave Of The Mounds, Wi
431 - Cross-Section Of Stalagmite Showing Growth Rings
432 - Pillar Forming, Lehmann Cave, Nv
433 - Stalactites And Stalagmites, Lehmann Cave, Nv
434 - Flowstone, Carlsbad Caverns, Nm
435 - Cavern, Mammoth Cave, Ky
436 - Bacon Strip Flowstone, Jewel Cave, Sd
437 - Calcite Crystal Flowstone, Jewel Cave, Sd
438 - Boxwork, Wind Cave, Sd
439 - Gypsum Flowers, Mammoth Cave, Ky
440 - Fishtails, Caverns Of Sonora, Tx
441 - Spring, Colorado River, Arizona
442 - Water Seep Over Impermeable Shale, Smoky R, Alberta
443 - Erosion Of Limestone By Dissolution (Lapies), China
444 - Karren On Limestone, Nashville, Tn
445 - Tower Karst And Karren, Stone Forest, China
446 - Karst Topography, S New Mexico
447 - Pepino Hill, Guadeloupe
448 - Pepino Hills, Puerto Rico
449 - Cross-Section Of Pepino Hill, Puerto Rico
450 - Pepino Hills, Li River, Southern China
451 - Cave Entrance In Sink, Yucatan, Mexico
452 - Emergence Of Sinking River, Northwest Wyoming
453 - Sinkhole In Limestone, Santa Rosa, Nm
454 - Sinkhole Filling With Water, Yellowstone Np, Wy
455 - Sink Lake In Limestone, Kentucky
456 - Sink Lake In Gypsum, Bottomless Lakes Sp, Nm
457 - Sink Lakes, Yugoslavia
458 - Satellite View Of Sink Lakes, Florida
459 - Sink Lakes On Topo Map, Bottomless Lakes, Nm (See Image 456)
460 - Sinking River On Topo Map, Mammoth Cave, Ky
461 - Jointing, Fins At Devils Garden, Arches Np, Ut
462 - Jointing, Arches Np, Ut
463 - Fold, Newfoundland, Nj
464 - Monocline, Bighorn Mts, Wyoming
465 - Monocline, Mexican Hat, Ut
466 - Monocline, Organ Rock Monocline, N Arizona
467 - Monocline, Vernal, Ut
468 - Anticline, Central Utah
469 - Chevron Fold, Montana
470 - Syncline, Central City, Co
471 - Roadcut Through Synclinal Mountain
472 - Drag Fold, Montana
473 - Recumbent Fold, Alaska
474 - Folding
475 - Chevron Fold, Glacier Np, Mt
476 - Refolded Fold, Carmel, Ny
477 - Folding With Fault, Bighorn Mts, Wyoming
478 - Reverse Fault, Honduras
479 - Reverse Faults, Central Utah
480 - Normal Fault, Big Bend Np, Tx
481 - Normal Fault, Needles, Ca
482 - Normal Fault, Zion Np, Ut
483 - Fault With Volcanics (Left) Downward, Bryce Canyon, Ut
484 - San Andreas Fault, California
485 - San Andreas Fault Showing Diversion Of River, California
486 - Macro Faults, Big Falls, Wi
487 - Step Faulting, Fall River County, Sd
488 - Aerial Of Flatirons, S China
489 - Horsts And Grabens, Canyonlands, Utah
490 - Graben, Death Valley, Ca
491 - Graben Valley, Nevada
492 - Resevoir In Rift Valley, San Andreas Fault, California
493 - Satellite View Of Rift, Red Sea
494 - Rift Valley, Thingveller, Iceland
495 - Fault Face, Colorado
496 - Slickensides, San Francisco, Ca
497 - Slickensides With Striations, Central Utah
498 - Fault Scarp, Duck Creek, Mt
499 - Fault Scarp, Green Mts, Wyoming
500 - Dome, Upheaval Dome, Canyonlands, Utah
501 - Hogback, Grand Hogback, New Castle, Co
502 - Hogback Around Domal Structure, W Central New Mexico
503 - Strike Valley, Capitol Reef Nm, Ut
504 - Flatirons, Moab, Ut
505 - Migmatic Structure
506 - Augens, Big Falls, Wi
507 - Unconformity, Cody, Wy
508 - Unconformity, Central Utah
509 - Graben And Earthquake Damage, Alaska
510 - Earthquake Damage, Montana
511 - Earthquake Damage, California
512 - Tsunami Damage, Alaska
513 - Seismograph
514 - Seismogram Of Earthquake, Pointing Out First P And S Waves
515 - Lava Fountain, Hawaii Volcanoes Np
516 - Lava Rivers, Hawaii Volcanoes Np
517 - Ash Eruption, Stromboli Volcano, Italy
518 - Eruption Of Mt Saint Helens, July 22, 1980
519 - Fumerole In East Rift Zone, Hawaii Volcanoes Np, Hi
520 - Ash And Steam Eruption, Stromboli Volcano, Italy
521 - Pahoehoe Lava, Hawaii
522 - Pahoehoe Lava, Iceland
523 - Pahoehoe Basalt, Craters Of The Moon Nm, Id
524 - Aa Lava, Hawaii
525 - Aa Lava, North Island, New Zealand
526 - Obsidian, Jemez Caldera, New Mexico
527 - Pillow Lava, Minnesota
528 - Basalt Flow, Iceland
529 - Contraction Cracks In Lava, Central Utah
530 - Columnar Basalt, Devils Postpile Nm, Ca
531 - Columnar Basalt, Giants Causeway, Ireland
532 - Basaltic Volcanic Bomb
533 - Bread Crust Volcanic Bombs, Mt Rainier, Wa
534 - Pumice Pyroclasts, Jemez Caldera, New Mexico
535 - Pumice Plain, Valley Of 10,000 Smokes, Katmai Np, Ak
536 - Cinder, Sunset Crater Nm, Az
537 - Volcanic Tuff, Katmai Np, Ak
538 - Ash From Mt Saint Helens, Washington
539 - Fallen Ash On Knife Creek Glacier, Katmai Np, Ak
540 - Shield Volcano, Galapagos Islands
541 - Shield Volcano, Tres Piedras, Nm
542 - Cinder Cone, Northern Arizona
543 - Cinder Cones, Galapagos Islands
544 - Composite Cone, Mount Hood, Oregon
545 - Composite Cone, Iztaccihuatl, Mexico
546 - Spatter Cones, Galapagos Islands
547 - Steam From Crater, Bali
548 - Cones Within Caldera, Alaska
549 - Halemaumau Caldera And Volcanic Observatory, Hawaii Vol - Anoes Np
550 - Crater Of Poas Volcano, Costa Rica
551 - Wizard Island, Cinder Cone In A Caldera, Crater Lake Np, Or
552 - Devastation At Mt Saint Helens, Wa
553 - Crater And Lava Dome, Mount Saint Helens, Wa
554 - Lava Channel Cutting Aa Basalt, Craters Of The Moon Nm, Id
555 - Tree Casts In Lava, Hawaii
556 - Lava Tube, Hawaii
557 - Sulfur Crystals At Fumerole, Hawaii
558 - Volcanic Neck, Devils Tower, Wyoming
559 - Volcanic Neck, Agatha Peak, Monument Valley, Ut/Az
560 - Plug (Core) Of Volcano, Shiprock, New Mexico
561 - Diabase Dike In Granite Quarry, Barre, Vt
562 - Dike With Plug In Background, Shiprock, Nm
563 - Dike, Nw Wyoming
564 - Metagabbro Sill On Mt Gould, Glacier Np, Montana
565 - Sill (Left Of Reddish Layer) Between Nearly Vertical Rock Layers, Dev - Ls Slide, Gardiner, Mt
566 - Intrusions, Lake Superior, Ontario
567 - Vein Of Quartz, Green Mountains, Vt
568 - Laccolith, Bear Butte, Sturgis, Sd
569 - Xenoliths, Inclusions In Granite, Donner Summit, Ca
570 - Hot Spring, West Thumb Geyser Basin, Yellowstone Np
571 - Algae In Hot Spring, Yellowstone Np, Wy
572 - Hot Spring, Punch Bowl Spring, Yellowstone Np
573 - Bubbling Mud Pot, Yellowstone Np, Wy
574 - Mud Volcano, Yellowstone Np, Wy
575 - Mud Volcano, Black Dragonõs Cauldron, Yellowstone Np
576 - Hot Spring And Mudpot, Valley Of 10,000 Smokes, Alaska
577 - Mud Volcano, Yellowstone Np, Wy
578 - Steam From Fumeroles, Firehole Lake Drive, Yellowstone Np
579 - Start Of Geyser Eruption, Geysir, Iceland
580 - Geyser Eruption, Pohotu Geyser, New Zealand
581 - Eruption Of Old Faithful, Yellowstone Np, Wy
582 - Geyserite At Castle Geyser, Yellowstone Np
583 - Travertine Terrace, Minerva Terrace, Yellowstone Np
584 - Stalactites On Travertine Terrace, Pamukkale, Turkey
585 - Geyserite Of Extinct Geyser, Yellowstone Np, Wy
586 - Geothermal Electric Plant, North Island, New Zealand
587 - Surf In Gulf Of Mexico, Northern Florida
588 - Superposition Of Converging Waves, Point Loma, Ca
589 - Waves Striking Headland Rock, Maine
590 - Storm Waves At Marine Platform, Puerto Rico
591 - Waves Breaking On Beach, Ne Florida
592 - Pocket Beach, North Island, New Zealand
593 - Wave Refraction, Mexico
594 - Wave Refraction In Pocket Beaches, Sydney, Australia
595 - Satellite View Of Drowned Coast, Maine
596 - Drowned Coast, Ne Harbor, Mt Desert Isle, Me
597 - Ria Coastline, Mamaroneck, Ny
598 - Ria Coastline With Drowned Norwalk River, Ct
599 - Sea Cliffs With Sea Arch, New Zealand
600 - Sea Cliffs And Terrace, Ireland
601 - Pocket Beach, Arecibo, Puerto Rico
602 - Wave-Cut Platform And Cliffs At Low Tide, San Diego, Ca
603 - Uplifted Marine Terraces, Ventura, Ca
604 - Sea Arch, New Zealand
605 - Spouting Horn (Blowhole) In Lava, Kauai, Hi
606 - Sea Caves In Stack, Olympic Np, Wa
607 - Sea Stacks, Bandon, Or
608 - Pothole Cut In Soft Shale, New Zealand
609 - Potholes Along Coast, Southern Australia
610 - Satellite View Of Barrier Islands, Eastern Florida
611 - Barrier Island With Salt Marsh, Cape Hatteras, Nc
612 - Barrier Island With Spit, New Jersey
613 - Satellite View Of Spit (Hook), Cape Cod, Ma
614 - Salt Marsh Behind Barrier Island, Cape Hatteras, Nc
615 - Salt Marsh Behind Barrier Island, New Jersey
616 - Groins (Jetties), New Jersey
617 - Groin, Cape Hatteras, Nc
618 - Breached Tombolo, New Zealand
619 - Jetties At Cape May, Nj
620 - Estuary With Bar, N California
621 - Mid-Bay Bar Built By Hammonasset River, Ct
622 - Estuary Of Marina Del Ray, Venice, Ca
623 - Quartz, White Sand Beach, Nw Florida
624 - Cobble Beach, La Jolla, Ca
625 - Shell Beach, Marco Island, Fl
626 - Series Of Beach Cusps, Drakes Bay, Ca
627 - Tidal Flat At Low Tide, Cape Cod, Ma
628 - Mud Flat At Low Tide, Bristol Bay, Ak
629 - Tidal Bore, Bay Of Fundy, East Coast Of Canada
630 - Satellite View Of Atoll, Cook Islands
631 - Coral Formations At Reef, Great Barrier Reef, Australia
632 - Contorted Bedrock In Mountains, Banff Np, Alberta
633 - Satellite View Of Folded Mountains, Appalachians, Harrisburg, Pa
634 - Steep Scarp Face Of Fault-Block Mountains, Sandia Mts, New Mexico
635 - Dome Mountain, Turkey Mt, New Mexico
636 - Volcanic Mountain, Mt Kilimanjaro, Tanzania
637 - Intrusive Stock, Mt Sopris, Carbondale, Co
638 - Young Mountains, Swiss Alps
639 - Mature Mountains, Blue Ridge Mts, Shenandoah Np, Va
640 - Old Mountain, Ayerõs Rock, Australia
641 - Old Mountains, Olga Mts, Australia
642 - Pediment From Pinaleno Mts, Safford, Az
643 - Uplifted Plateau, Cedar Breaks Nm, Ut
644 - Volcanic Plateau, Northern New Mexico
645 - Uplifted Plateau Of Sandstone, W New Mexico
646 - Canyon In Youthful Plateau, Canyonlands Np, Ut
647 - Mature Plateau, Dead Horse Point Sp, Utah
648 - Plateau In Old Age, Monument Valley, Ut/Az
649 - Mesa, Monument Valley, Ut/Az
650 - Butte, Fisher Towers, Utah
651 - Pinnacles, Monument Valley, Ut/Az
652 - Coastal Plain, Everglades Np, Fl
653 - Glacial Lake Plain, North Dakota
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