Engineering

Culvert to prevent road erosion

Engineered log jam

Log bridge

Snow on a bridge in a temperate rainforest

Suspension bridge for hikers

Suspension bridge for hikers

Suspension bridge for hikers

Suspension bridge for hikers

Suspension bridge for hikers

Suspension bridge for hikers

Two-part log bridge

Bridge over a waterfall

Rock shelter for hikers

Frog on broken bridge

Raised trail

Meadow and cabin

Trail reinforcement with rocks

Gate and rock slide

Car bridge over Fryingpan Creek