 | United States. National Aeronautics and Space Administration - 1978 - 416 pages
...Other agricultural land 31 Herbaceous rangeland 32 Shrub and brush rangeland 33 Mixed rangeland 41 Deciduous forest land 42 Evergreen forest land 43...gravel pits 76 Transitional areas 77 Mixed barren land 81 Shrub and brush tundra 82 Herbaceous tundra 83 Bare ground tundra 84 Wet tundra 85 Mixed tundra... | |
 | Nicholas M. Short - 1982 - 566 pages
...53 Reservoirs 54 Bays and estuaries 6 Wetland 61 Forest wetland 62 Nonforested wetland 7 Barren land 71 Dry salt flats 72 Beaches 73 Sandy areas other...pits 76 Transitional areas 77 Mixed barren land 8 Tundra 81 Shrub and brush tundra 82 Herbaceous tundra 83 Bare ground tundra 84 Wet tundra 85 Mixed... | |
 | William Burton Mitchell, Geological Survey (U.S.) - 1977 - 24 pages
...Perennial snow ice 71 Dry salt flats 72 Beaches 73 Sandy areas other than beaches 74 Bare exposed rocks 75 Strip mines, quarries, and gravel pits 76 Transitional areas 77 Mixed barren land 81 Shrub and brush tundra 82 Herbaceous tundra 83 Bare ground 84 Mixed tundra 91 92 Perennial snowfields... | |
 | Geological Survey (U.S.) - 1978 - 218 pages
...rangeland. 33 Mixed rangeland. 41 Deciduous forest land. 42 Evergreen forest land. 43 Mixed forest land. 51 Streams and canals. 52 Lakes. 53 Reservoirs. 54 Bays...pits. 76 Transitional areas. 77 Mixed barren land. 81 Shrub and brush tundra. 82 Herbaceous tundra. 83 Bare ground tundra. 84 Wet tundra. 85 Mixed tundra.... | |
 | Jerrold W. Christenson, Carol Anderson, Phyllis Gumbmann - 1979 - 32 pages
...Rangeland 33 Mixed Rangeland 41 Deciduous Forest Land 42 Evergreen Forest Land 43 Mixed Forest Land 51 Streams and Canals 52 Lakes 53 Reservoirs 54 Bays...Gravel Pits 76 Transitional Areas 77 Mixed Barren Land 81 Shrub and Brush Tundra 82 Herbaceous Tundra 83 Bare Ground Tundra 84 Wet Tundra 85 Mixed Tundra... | |
 | Nicholas M. Short - 1982 - 576 pages
...Reservoirs 54 Bays and estuaries 6 Wetland 61 Forest wetland 62 No nfo rested wetland 7 Barren land 71 Dry salt flats 72 Beaches 73 Sandy areas other...pits 76 Transitional areas 77 Mixed barren land 8 Tundra 81 Shrub and brush tundra 82 Herbaceous tundra 83 Bare ground tundra 84 Wet tundra 85 Mixed... | |
 | David T. Lindgren - 1985 - 200 pages
...Other Agricultural Land 31 Herbaceous Rangeland 32 Shrub and Brush Rangeland 33 Mixed Rangeland 41 Deciduous Forest Land 42 Evergreen Forest Land 43...Gravel Pits 76 Transitional Areas 77 Mixed Barren Land 81 Shrub and Brush Tundra 82 Herbaceous Tundra 83 Bare Ground Tundra 84 Wet Tundra 85 Mixed Tundra... | |
 | Morris Mordecai Thompson - 1988 - 290 pages
...Reservoirs 54. Bays and estuaries 6. Wetland 61. Forested wetland 62. Nonforested wetland 7. Barren land 71. Dry salt flats 72. Beaches 73. Sandy areas other...pits 76. Transitional areas 77. Mixed barren land 8. Tundra 81. Shrub and brush tundra 82. Herbaceous tundra 83. Bare ground tundra 84. Wet tundra 85. Mixed... | |
 | Ian F. Spellerberg - 1991 - 352 pages
...rangeland 33 Mixed rangeland 41 Deciduous forest land 42 Evergreen forest land 43 Mixed forest land 51 Streams and canals 52 Lakes 53 Reservoirs 54 Bays...gravel pits 76 Transitional areas 77 Mixed barren land 81 Shrub and brush tundra 82 Herbaceous tundra 83 Bare ground tundra 84 Wet tundra 85 Mixed tundra... | |
 | 1993 - 194 pages
...Reservoirs 54. Bays and estuaries 6. Wetland 61. Forested wetlands 62. Nonforested wetlands 7. Barren land 71. Dry salt flats 72. Beaches 73. Sandy areas other...pits 76. Transitional areas 77. Mixed barren land 8. Tundra 81. Shrub and brush tundra 82. Herbaceous tundra 83. Bare-ground tundra 84. Wet tundra 85. Mixed... | |
| |
Nonforested wetland 71 Dry salt flats 72 Beaches 73 Sandy areas other than beaches 74 Bare exposed rock 75 Strip mines, quarries, and gravel pits 76 Transitional areas 77 Mixed barren land... 
