Technical Abstract: Grazing lands are the most dominate land cover type in the United States with approximately 311.7 Mha being defined as rangelands. Approximately 53% of the Nation’s rangelands are owned and managed by the private sector while the Federal government manages approximately 43% of the Nation’s rangelands. The remaining rangelands are owned and managed by tribal, state and local governments. Information on the type, extent, and spatial location of land degradation on rangelands is needed to inform policy and management decisions on rangelands; however, there is no systematic or coordinated national dataset on status or condition of rangelands for the United States to make informed policy decisions. This report focuses on the status of hydrologic tools to assess the impact and benefits of conservation practices at the watershed scale using the capability of the AGWA interface and the SWAT river basin and KINEROS2 models. The initial rangeland assessment focuses on watersheds in the intermountain west. The initial analysis utilized a 5 year return precipitation event to assess the benefit of conservation practices such as brush control, stream buffers, prescribed fire and wildfires, and habitat improvement. Grazing Land CEAP has successfully developed hillslope scale soil erosion models for water and wind erosion that estimate that brush control and reseeding in Arizona can reduce peak flow in the channels after conversion to grassland by 72 to 98 percent, with similar reductions in average annual runoff and sediment yield. Properly place stream buffers in southwest Idaho can reduce sediment yield by 57%. Project findings and results were used to report progress on the environmental benefits of USDA conservation programs to Congress.