1. Summary of U.S. threatened and endangered species listings, 1976-2019
- Author(s):
- Knowles, Michael S.; Flather, Curtis H.
2. Wildland fire impacts on water supply (FIWAS) data for the contiguous United States
- Author(s):
- Hallema, Dennis W.; Sun, Ge; Caldwell, Peter V.; McNulty, Steven G.
U.S. Department of Agriculture