A watershed is an area of land that drains to a common water body, such as a lake or stream.

In the Milford Lake Watershed, water collects in Milford Lake from an area throughout north-central Kansas. The watershed covers 1,252,480 acres and consists of 891 stream miles.

The Milford Watershed RCPP focuses on the Kansas portion of the watershed within the Lower Republican Basin in Clay, Cloud, Dickinson, Geary, Jewell, Mitchell, Republic, Riley, and Washington Counties.