United States Department of Agriculture, Natural Resources Conservation Service and Forest Service ; in cooperation with United States Department of the Interior, Bureau of Indian Affairs and Bureau of Land Management, and Montana Agricultural Experiment Station
United States Department of Agriculture, Soil Conservation Service ; in cooperation with United States Department of Agriculture, Forest Service and Virginia Polytechnic Institute and State University
United States Department of Agriculture, Natural Resources Conservation Service, and Forest Service ; in cooperation with Minnesota Agricultural Experiment Station
United States Department of Agriculture, Soil Conservation Service, in cooperation with United States Department of Agriculture, Forest Service, and University of California Agricultural Experiment Station
United States Department of Agriculture, Soil Conservation Service ; in cooperation with United States Department of Agriculture, Forest Service, and Mississippi Agricultural and Forestry Experiment Station
United States Department of Agriculture, Soil Conservation Service ; in cooperation with United States Department of Agriculture, Forest Service, and the Virginia Polytechnic Institute and State University