Saint Marys Lake Trail Series
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Event overview
The Saint Marys Lake Trail Series is a trail race event at Saint Marys Lake near Leonardtown, Maryland. The 2026 edition is scheduled for February 28, 2026. The event offers three distances and is limited to 100 participants across all races. Runners may change their planned distance during the event but are asked to notify event staff of the distance completed for recording purposes. The organizer provides a GPX file of the route and trail markings on course.
Distances
- 50K
- 34K
- 17K
Course and aid stations
The race uses an approximately 10.5 mile loop around the lake perimeter and into Salem Forest, run in one, two, or three laps. The lake and connected trails total about 250 acres of water, a 7.5 mile main route, and roughly 8 miles of additional trails. Surface composition is about 75% single track (dirt, roots, rock, wooden bridges), 20% forest road, and 5% crushed gravel along the dam. Each lap has about 500 ft of cumulative elevation gain and loss. Expect some mud or wet sections depending on conditions.
The main aid station is at the park entrance on Camp Cosoma Road with warm food, drink, toilets, parking, and a small covered area. A second aid station near Salem Forest on Indian Bridge Road offers food, drink, and a porta potty but may not be staffed continuously; drop bags are allowed. The trail remains open to other users during the event. Visit the organization's website for the most recent information.
