The Tryon Creek State Natural Area is a state park located primarily in Portland, in the U.S. state of Oregon. It is the only Oregon state park within a major metropolitan area. The 645acre park lies between Boones Ferry Road and Terwilliger Boulevard in southwest Portland in Multnomah County and northern Lake Oswego in Clackamas County and is bisected from north to south by Tryon Creek.ResourcesThe park includes hiking trails, a paved bicycle path, and horse trails. The 3mi bicycle path, which runs along Terwilliger Boulevard on the east edge of the park to Lake Oswego, is part of the Portland metropolitan area's system of greenway trails known as the 40 Mile Loop. Near the main entrance off Terwilliger, part of the parking lot is devoted to horse trailers. Riders can choose between the 2mi North Horse Loop and the 3mi West Horse Loop. Hikers can use the bike path, the horse trails, and 8mi of hiking trails. The paved 0.35mi Trillium Trail, a loop furnished with drinking fountains and interpretive signs, can accommodate wheelchairs. Trillium Trail has benches and two viewing decks.A park building called the Nature Center is near the main park entrance. It has a small play area for toddlers, a gift shop, a large classroom, and a separate area for educational exhibits. Nearby is the Glenn Jackson Shelter, a covered structure for outdoor events.
