Catoctin Mountain Highway (MD-77)
Maryland Route 77 runs 20.74 miles east-west through northern Maryland, ascending South Mountain before descending Catoctin Mountain along the narrow Hunting Creek valley. The road threads between Cunningham Falls State Park to the south and the National Park Service-managed Catoctin Mountain Park to the north — the same forested ridge sheltering Camp David. The highway is designated as both the Journey Through Hallowed Ground Byway and the Old Main Streets Scenic Byway, and passes through Thurmont (junction with US-15) before extending east through Rocky Ridge to Keymar. Densely forested twisties through the park corridor are the draw; fruit stands and a covered bridge punctuate the quieter eastern farmland section.
What you'll hit along the way.
Rider-verified stops, overlooks, fuel, and the corners worth knowing about — in the order you'll meet them.
Keymar
A quiet rural crossroads that marks the eastern starting point of the Catoctin Mountain Highway.
Thurmont
A small mountain-gateway town offering fuel, services, and access to Catoctin Mountain Park.
Thurmont Kountry Kitchen
A local diner in Thurmont well-suited for a meal stop at the western end of the route.
Vicmyer Vista
A midroute stop along the ridge with views across the surrounding farmland and foothills.
No runs logged on this road yet — be the first.
Runs are rider-logged & GPS-traced in the app
Ride your own ride — times are rider-logged & GPS-traced, never a race on public roads.
Shot by the riders who've run it.
Riders upload photos to their profile and tag the road or stop — tagged shots show up here automatically.