South Mountain State Park

Thurston Griggs Trail

13.5 mi · ▲ 2,251 ft · 5 hr 38 min

Thurston Griggs Trail is a 13.5-mile out-and-back in South Mountain State Park near Hopkins Ridge, MD. It climbs 2,251 ft, with sections as steep as 20% grade, and is mostly dirt. It scores 31/100 on the Ambleway Wildness scale: green fringe.

Elevation

0 mi860 – 1,873 ft · steepest grade: 20%13.8 mi

Getting there

Trailhead: Appalachian National Scenic Trail 39.63690, -77.54133
Nearest town Hopkins Ridge, MD

Directions

AMBLEWAYwww.ambleway.com

Thurston Griggs Trail

13.5 mi · ▲ 2,251 ft · 5 hr 38 min

Elevation 860–1,873 ft

Out & Back · South Mountain State Park

Trailhead: Appalachian National Scenic Trail · 39.63690, -77.54133

Weather Sep 20: sunrise 6:57 AM · sunset 7:12 PM

Parking lot at the trailhead

  1. Start at the trailhead, heading SW.
  2. 1.1 miBear right, heading W.
  3. 50 ftTurn left, heading SW.
  4. 4.7 miTurn right onto Thurston Griggs Trail, heading S.
  5. 0.9 miReach Thurston Griggs Trail, then turn around and head back the way you came.
  6. 0.9 miTurn left, heading E.
  7. 4.7 miTurn right, heading E.
  8. 50 ftBear left, heading E.
  9. 1.1 miArrive back at the trailhead.

Each distance is the walk from the previous step. Tap a step for a map of its junction.

Trail surface

99% dirt1% paved

Weather

Sunrise 6:57 AMSunset 7:12 PM

Good to know

  • Parking lot at the trailhead

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