Author
Geological Survey (U.S.)
3,152
United States Bureau of the Census
1,097
Rand McNally and Company
657
United States Forest Service
544
United States Bureau of the Census. Geography Division
374
United States National Park Service
366
U.S. Coast and Geodetic Survey
291
H.M. Gousha Company
241
United States Bureau of Land Management
230
United States Army. Corps of Engineers
210
United States Bureau of Agricultural Economics
160
American Automobile Association
152
United States Forest Service. Intermountain Region
143
United States Coast Survey
117
United States Soil Conservation Service
109
General Drafting Company
106
National Geographic Society (U.S.) Cartographic Division
106
Gannett, Henry, 1846-1914
86
United States General Land Office
75
United States War Department
74
Carey, Mathew, 1760-1839
73
United States Forest Service. Pacific Northwest Region
72
United States National Oceanic and Atmospheric Administration
72
United States Bureau of the Census. Population Division
71
Bien, Julius, 1826-1909
68
Geometronics Service Center (U.S.)
68
U.S. Census Bureau
66
United States Department of Agriculture
66
National Highways Association
62
Tanner, Henry Schenck, 1786-1858
60
United States Forest Service. Southwestern Region
60
United States Bureau of Reclamation
59
United States Bureau of the Census. Data Preparation Division
59
Mitchell, S. Augustus (Samuel Augustus), 1792-1868
58
Julius Bien & Co
57
United States Federal Power Commission
57
Mitchell, Samuel Augustus
56
U.S. Fish and Wildlife Service
56
Environmental Systems Research Institute (Redlands, Calif.)
55
Morse, Jedidiah, 1761-1826
55
Young, J. H (James Hamilton)
55
ebrary, Inc
53
Peddie, Norman W
51
Poole Brothers
51
C.S. Hammond & Company
50
United States Forest Service. Northern Region
50
Lewis, Samuel, 1753 or 1754-1822
48
Maps.com (Firm)
47
Automobile Club of Southern California
46
GeoLytics, Inc
45
more ...