Natural Surface Hiking Trail, California

Hood Bridge

Test

Driscoll Log Bridges

Bridges

Suspension Bridge, McCloud River

Bridges

Squaw Creek

Bridges

Claibourne Bridge

Bridges

Whitechuck Trail, Darrington, Washington

Bridges

Retaining Walls, Medford, OR

Retaining Walls

Asphalt Trail, Tahoe National Forest

Asphalt Trails

Suspension Bridge, Shasta, California

Bridges

Low Impact Trail, Hillsboro, Oregon

Asphalt Trails

Asphalt Trail, Yosemite, California

Asphalt Trails

Lava River Trail, McKenzie Pass, Oregon

Asphalt Trails

Skinner’s Butte Park, Eugene, Oregon

Retaining Walls / Trails