Middle North Platte-Casper

Watershed Hydrology

The Middle North Platte Casper watershed, located in Wyoming, covers an area of approximately 6,300 square miles. The hydrology of the area is largely influenced by snowpack, which typically accumulates between November and April. Spring snowmelt results in increased surface water flow, which can cause flooding in some areas. The watershed is home to several reservoirs, including the Seminoe Reservoir and the Pathfinder Reservoir, which provide important water resources for the surrounding communities. The reservoirs also contain significant amounts of sediment and nutrients, which can impact water quality. Climate in the watershed is characterized by cold winters and warm summers, with precipitation occurring primarily in the form of snowfall. Over the past several decades, there has been a trend toward earlier snowmelt and decreased spring precipitation, which could have implications for water availability in the region.


Surface Flows

Middle North Platte-Casper Watershed

Snowpack Depths

Middle North Platte-Casper Watershed

Dams & Reservoirs

Middle North Platte-Casper Watershed

Groundwater Levels

Middle North Platte-Casper Watershed

Middle North Platte-Casper Rivers

Rivers of the Watershed