4.0 star · Difficult Loop

Greenbrier Lake to Monument Knob

Washington County, Maryland

Trail length

19.8 km

Time

~4 hrs 56 min

Elevation Gain

585 m

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"An epic challenge to remember from the heart of Washington County"

The Greenbrier Lake to Monument Knob is a 19.8 km looped trail that starts and ends in San Mar, Washington County, Maryland. Based on our data, the trail is graded as Difficult. For information on how we grade trails, please read measuring the difficulty of a hiking trail on hiiker. Also, check our latest community posts for trail updates.

This trail can be completed in approx 7 hrs 4 mins. Caution is advised on trail times as this depends on multiple variables. For more info read about how we calculate hike time.