| Abondoned delta, Bangladesh and India, 328 | Aberdeen Lake, Canada, 572 |
| Active delta, Bangladesh and India, 326 | Adelaide rift, Australia, 166 |
| Aden, 268 | Adirondack Mountains, New York, 52 |
| Adriatic coast, 370 | Aerial photographs, use of 637 |
| Afar Depression, Africa, 108 | Afar Triangle, volcanism, 234 |
| Afar Triple Junction, Africa, 108 | African Rift, Landsat mosaic, 106 |
| African Rift Valley, 234 | Ahaggar Mountains, Algeria, 170 |
| Air Mountains, Niger, 172 | |
| Alaska | |
| Aleutian Arc, 210 | Columbia Glacier, 558 |
| Colville River, 280 | Finger Lakes, 426 |
| geomorphic map, 646 | Glacier Bay, 364 |
| Malaspina Glacier, 550,570, | mosaic, 50 |
| Mount Mckinley, 554,666 | oriented lakes, 430 |
| Alaska Range, 554 | Yukon River, 282 |
| Yukon River delta, 338 | Aletsch Glacier, Switzerland, 568 |
| Aleutian Arc, Alaska, 210 | Aleutian Trench, 210 |
| Algeria, Tanezrouft Basin, 470 | Alice Springs Orogeny, 20 |
| Alluvial fans, Brazil, 300 | |
| Alluvial fans | |
| California, 40 | China, 294 |
| India, 296 | Iran, 292 |
| Jordan, 266 | Madera Canyon, Arizona, 276 |
| Alpine Fault, New Zealand, 168,374 | |
| Alpine glaciation | |
| Alaska, 50 | Colorado, 42 |
| Alpine glaciers, China, 588 | |
| Alps | |
| European, 82,86 | Landsat mosaic |
| tectonic history, 82 | Altiplano, Bolivia, 438,442 |
| Altyn Tagh fault zone, China, 150 | Amadeus Basin, Australia, 8 |
| Amargosa Desert, 484 | Amazon deep-sea fan, 659 |
| Amazon River (Solimões River) | Brazil, 255,302,304 |
| Amu Darya River delta, U.S.S.R., 350 | Anastomosing channel, 258,290,338,304 |
| Anastomosing distributaries, | Mackenzie River delta, 340 |
| Anatolian Transform Faults, Turkey, 114 | Ancient landscapes, 8 |
| Andean Cordillera, Peru 76 | Andean Foreland, 308 |
| Andean Mountains, 308 | |
| volcanism, 220 | |
| Andesite Line, Central America, 216 | Andros Island, Bahama, 386 |
| Angel Falls, Venezuela, 274 | Annular drainage, South Dakota, 44 |
| Antarctica | |
| deserts, 490 | |
| Pine Island Glacier, 558 | Ross Ice Shelf, 540 |
| Victoria Land, 538 | Anti Atlas Mountains, Morocco, 94 |
| Anu Darya River delta, U.S.S.R., 319 | Appalachian Mountains, 52 |
| Appalachian Plateau, fluvial | |
| dissection, 310 | |
| Arabian Sea, 348 | Arabian Shield, volcanism, 236 |
| Aral Sea 350,440 | Arctic Archipelago, 68 |
| Arctic Coastal Plain, Alaska, 280 | Arete, Ural Mountains, 560 |
| Argentina | |
| dust storm, 659 | |
| Patagonian ice field, 544 | Arica Elbow, Bolivia, 74 |
| Arid lands, remote sensing, 456 | Ariel, 632 |
| Arizona | |
| Grand Canyon, 272 | |
| Pinacate volcanic field, 198 | San Francisco Mountains, 196 |
| Sonoran Desert, 482 | Tucson Mountains, 276 |
| Arrow Canyon Range, Nevada, 38 | Assam Plateau, 284 |
| Atacama Desert, Chile, 378,478 | Atacama fault, Chile, 74 |
| Atlantic type coast | |
| Falkland Islands, 366 | |
| Ireland, 368 | Atlas Mountains, North Africa, 676 |
| Atolls, Coral Islands, 392 | |
| Australia | |
| Amadeus Basin, 20 | Burke and Hamilton Rivers, 286 |
| central, 20 | coastline New South Wales, 358 |
| Cobourg Peninsula, 360 | Cooper Creek, 288 |
| Finders Range, 166 | geomorphic mapping, 647 |
| Great Barrier Reed, 390 | Great Sandy Desert, 492 |
| Kimberley Plateau, 164 | Macdonnell Range, 20 |
| Nullarbor karst, 424 | Simpson Desert, 494 |
| western coastline, 394 | Australian Shield, 158 |
| Baffin Island, Canada, 546 | Baikal rift, U.S.S.R., 440 |
| Bajada, California, 40 | Balize delta, 320 |
| Balkan Alpine system, 88 | |
| Bangladesh, Ganges/Brahmaputra | |
| Rivers delta, 326,328 | Banks Peninsula, New Zealand, 374 |
| Barnes Ice Cap, Baffin Island, | |
| Canada, 546 | |
| Barrier islands, North Carolina, 380 | Barrier ridges, Florida, 382 |
| Bartow, Florida, 420 | Basin and Range, 32, 36, 198, 276 |
| Bathurst Island, 68 | |
| Bay of Bengal, 326 | |
| beaches, transgressive, Brazil, 324 | Bear Province, Canada, 66 |
| Belize reef tract, 388 | Bengal Basin, Bangladesh and India, 326 |
| Beni Basin, Bolivia, 434 | Bering Sea, Alaska, 338 |
| Big Bend, Texas, 214 | Big Horn Basin, Wyoming, 42,46 |