Together, the Maryland-National Capital Park and Planning Commission's Patuxent River Park and The Maryland Department of Natural Resources Merkle Wildlife Sanctuary comprise over 3,500 acres along the banks of the Patuxent River. The river and its shores are home to an incredible variety of wildlife. By participating in this annual benefit race, you will be contributing to conservation projects and research aimed at preserving the Patuxent River's natural wildlife. Proceeds from the run and walk directly support projects, research, conservation, and education in the Patuxent River watershed.