Pavilion Trail to Champoeg Path loop — Champoeg State Heritage Area

Cooper Mountain Nature Park loop

Iowa Hill loop from Dixon Mill Road — Chehalem Ridge Nature Park

Tualatin Hills Nature Park loop — Beaverton

Tualatin Hills Nature Park & Nike Woods loop from Beaverton — Oregon

Tryon Creek State Natural Area loop — Lake Oswego

Clackamas River Greenway & Trolley Trail loop — Gladstone

Tualatin River Greenway Trail to Cook Park loop — Tualatin

Outer Loop — Miller Woods

North Creek and Middle Creek loop — Tryon Creek State Natural Area

Tualatin River National Wildlife Refuge loop

Chehalem Ridge from Dixon Mill Road — Chehalem Ridge Nature Park

Jackson Bottom Wetlands Preserve loop from North Parking