Location: Mokelumne Wilderness, Alpine County California
Trail Length: Approximately 8 miles
Elevation Change: 2,500’
Trailheads:

  • Western Trailhead: 8.8 miles up Blue Lakes Road, at 8,300’ elevation
  • Eastern Trailhead: End of the 2-mile dirt section of Sawmill Road, near Markleeville, CA, at 6,150’ elevation

Trail Highlights: Thornburg Canyon offers adventurers a mix of stunning landscapes, rich history, and invigorating challenges. This trail winds through the rugged beauty of the Mokelumne Wilderness, making it a must-visit destination for hikers seeking a memorable outdoor experience.

Starting Your Journey

Western Trailhead: Begin your adventure from the trailhead along Blue Lakes Road. The paved shoulder provides parking for 4-6 vehicles. From here, the trail quickly introduces you to its dynamic terrain with a 350’ climb in the first mile, reaching the highest point of the route.

From this vantage, prepare for a 600’ descent into a picturesque mountain meadow—a serene and photogenic spot perfect for a quick break or a leisurely picnic.

Mid-Trail Ascent: A brief climb brings you back to 8,300’ before the trail’s most dramatic section: a thrilling 5+ mile descent through dense forest and rocky terrain to the eastern trailhead.

Trail’s End

Eastern Trailhead: Conclude your hike at the trail’s end near Sawmill Road. This area’s lower elevation and proximity to Markleeville make it an excellent spot to cool down and reflect on your journey.

Adventure Tips:

  • Parking: Limited parking is available at the western trailhead on Blue Lakes Road. Arrive early to secure a spot.
  • Trail Conditions: Be prepared for a mix of ascents and descents; trekking poles and sturdy footwear are highly recommended.
  • Wildlife & Flora: Thornburg Canyon’s remote location makes it a haven for wildlife enthusiasts. Keep an eye out for deer, marmots, and a diverse range of alpine flora.
  • Water Sources: Carry ample water, as natural water sources may be limited during the summer months.
  • Seasonal Access: The trail is typically accessible from late spring through early fall. Check road and trail conditions before planning your trip.

Why Thornburg Canyon?

Thornburg Canyon isn’t just a hike—it’s an immersive journey through the heart of the Sierra Nevada’s Mokelumne Wilderness. With its challenging yet rewarding terrain, breathtaking vistas, and peaceful meadows, this trail offers an unforgettable adventure for hikers of all levels. Whether you’re seeking solitude, a rigorous workout, or a chance to connect with nature, Thornburg Canyon delivers in every way. This region has been effected by recent fire damage, some burn scar areas prevelant.

Plan your trip today and discover the timeless allure of Thornburg Canyon!

For other Alpine County trails visit the Alpine county trail Association page or enjoy these trail reviews from Sierra Rec Staff: