USGS land use and land cover classification system

Anderson, J. R., et al., 1976. A land use and land cover classification for use with remote sensor data, U.S. Geological Survey Professional Paper 964, Washington, U.S. Government Printing Office.

  Level I   Level II
1
Urban or built-up land
11
Residential
12
Commercial & services
13
Industrial
14
Transportation, communications & utilities
15
Industrial & commercial complexes
16
Mixed urban or built-up land
17
Other urban or built-up land
2
Agricultural land
21
Cropland & pasture
22
Orchards, groves, vineyards, nurseries & ornamental horticultural areas
23
Confined feeding operations
24
Other agricultural land
3
Rangeland
31
Herbaceous rangeland
32
Shrub & brush rangeland
33
Mixed rangeland
4
Forest land
41
Deciduous forest land
42
Evergreen forest land
43
Mixed forest land
5
Water
51
Streams & canals
52
Lakes
53
Reservoirs
54
Bays & estuaries
6
Wetland
61
Forested wetland
62
Nonforested wetland
7
Barren land
71
Dry salt flats
72
Beaches
73
Sandy areas other than beaches
74
Bare exposed rock
75
Strip mines, quarries & gravel pits
76
Transitional areas
77
Mixed barren land
8
Tundra
81
Shrub & herbaceous tundra
82
Herbaceous tundra
83
Bare ground tundra
84
Wet tundra
85
Mixed tundra
9
Perennial snow or ice
91
Perennial snowfields
92
Glaciers