Creator
- Riverside County (Calif.). Geographic Information Services47
- Inyo County (Calif.). Information Services Department46
- Jasper Ridge Biological Preserve (Agency)45
- National Atlas of the United States43
- California Geological Survey42
- County of Santa Clara. Geographic Information Services41
- United States. National Oceanic and Atmospheric Administration40
- San Joaquin County (Calif.). Community Development Department39
- Santa Clara County (Calif.). Planning Office38
- Greene, H. G.37
- Arctic Climate System (ACSYS)35
- Sacramento County GIS35
- Placer County Geographic Information Systems33
- Moss Landing Marine Laboratories32
- United States. National Ocean Service31
- United States. Department of Commerce30
- California. Division of Mines and Geology29
- Smith, Walter H. F.29
- Wessel, Paul29
- Hartwell, Stephen R.27