Portland, Oregon
Forest Park is one of the largest urban forests in the United States, stretching for more than 8 miles along the eastern slope of the Tualatin Mountains. It provides a critical refuge for native wildlife and a natural respite for city residents.
The park boasts over 80 miles of soft-surface trails, fire lanes, and forest roads. The Wildwood Trail, which runs the length of the park, is a favorite among hikers and trail runners. The Stone House (Witch's Castle) is a popular historic ruin within the park.
Hiking, trail running, and bird watching are the primary activities. Cyclists can use the designated fire lanes and roads. It's an ideal spot for immersing oneself in nature without leaving the city limits.