Patuxent River is not a city, but rather a river in Maryland. It flows for about 110 miles through several counties, including Prince George's, Anne Arundel, and Calvert County. The river is named after the Patuxent Native American tribe and is known for its diverse wildlife and natural beauty. There are several communities and towns located along the river, such as Solomons and Lusby, but there is no specific city named "Patuxent River."