Unmarked trails for hiking.
Patuxent River State Park is located on the Howard/Montgomery County line between Maryland Routes 27 and 97 and can be accessed by taking I-70 west from Baltimore. Take Exit 76, or Route 97 south, and continue south to the point where Route 97 crosses the Patuxent River. A parking lot is available on the right. For other access points, contact Seneca Creek State Park, which manages this facility.
http://www.tripleblaze.com/trail.php?c=3&i=4234