(Smokey Glen Farm, 28', 1976, 20-15-B) across a brook NE of Darnestown, District 6 Township, Montgomery County, MD. MD28 (Darnestown Rd.) NE 2.0 miles from jct with MD112 (Seneca Rd.) in Darnestown, N. on Riffle Ford Rd. 0.6 miles to Smokey Glen Farm on the E. side of the road at 16407. Bridge is about 0.2 miles back in the farm. (6-12-08, N39 07.507 W77 15.945) Photo by Harry Hill.