Thayer Trace

Mill Run Recreation Area

Campground

Blue Trail

• Ends at Herrington Manor Recreation Area Reservoir
• 1,075 ft of climbing

9.0 mi loop · 1,075 ft gain · Hard

MD

Red Trail

• Ends at Herrington Manor Recreation Area Reservoir
• 1,049 ft of climbing

8.1 mi out & back · 1,049 ft gain · Moderate

MD

Connector Trail

• Ends at Herrington Manor Recreation Area Reservoir

5.1 mi out & back · 676 ft gain · Moderate

MD

Cabin Loop

• Ends at New Germany Lake

2.4 mi out & back · 501 ft gain · Easy

MD · Camp 15 mi away