Northern California Wilderness Areas: Marble Mountain & Trinity Alps

Trail Maintenance Priority Area #7





  • Klamath National Forest, California
  • Six Rivers National Forest, California
  • Shasta-Trinity National Forest, California

A picture of a rocky, steep mountain side.

The Marble Mountain and Trinity Alps wilderness areas are located within the steep and mountainous terrain of the Klamath Mountains. Visitors access the expansive vistas, numerous lakes, and several Wild and Scenic Rivers within these wilderness areas through a network of over 980 miles of trails.  Localized flooding and landslides from heavy rain and snow during the winter months typically damage a portion of the trail system each winter. These weather events and recent large wildfires in recent years have combined to create extensive areas of downed trees, dense brush, and damaged trail tread.

With the priority area focus, the Klamath, Shasta-Trinity, and Six Rivers National Forests are working with partners to develop and implement a sustainable trail maintenance program.  Our goal is to maintain public access and opportunity to experience these wilderness areas as well as to sustain the vital local tourism economy.

Download a map of the trail maintenance priority area (PDF)

Examples of Trail Maintenance Needs

  • Remove fallen trees from the trail
  • Clear overgrown brush from the trail corridor
  • Reconstruct damaged trail tread
  • Repair and replace trail drainage structures

Our Partners

A picture of a rocky mountain trail surrounded by forest. Partners supporting this priority area include: 

  • Ascend Wilderness Experience
  • Backcountry Horsemen of California (three chapters)
  • Bigfoot Trail Alliance
  • Boy Scouts of America
  • California Conservation Corps
  • California Department of Fish and Wildlife
  • Eastern Sierra Conservation Corps
  • High Sierra Conservation Corps
  • Karuk Tribe (potential partner)
  • Pacific Crest Trail Association
  • Scott River Watershed Council
  • Siskiyou County youth crews
  • Siskiyou Mountain Club
  • Siskiyou Wanderers
  • Trinity Trails Alliance
  • United Trail Maintainers of California
  • Weaver Basin Trail Committee
  • Wilderness Volunteers

Learn More & Get involved!

To know more about trail maintenance efforts in this priority area, contact:

Jeff Novak, Recreation Program Manager, Klamath National Forest
Phone: (530) 841-4467

Mike McFadin, Wilderness & Trails Program Manager, Shasta-Trinity National Forest
Phone: (530) 623-1760