Nestled in the awe-inspiring Columbia River Gorge, Ainsworth is equal parts waterfall wonderland, hiker’s playground and camper’s delight.

Situated at the eastern end of the Historic Columbia River Highway, the park also marks the eastern end of the popular “Waterfall Corridor” that begins at Crown Point and includes the majestic Multnomah Falls. Latourell, Bridal Veil, Wahkeena, and Horsetail Falls are also along this route.


A tract of 40 acres was donated in 1933 by John C. Ainsworth and his wife, Alice. Additional land was purchased in 1947 and 1966. Original picnic facilities and trails were constructed in 1935 by Civilian Conservation Corps workers. John Churchill Ainsworth (1870-1943) was a prominent Oregon businessman and banker (U. S. National Bank) in Portland.

He served as chairman of the State Highway Commission 1931-1932 and was the son of Captain J. C. Ainsworth, pioneer steam-boatman and founder of the Oregon Steam Navigation Company.


Ainsworth State Park Oregon
Cascade Locks, OR 97014, United States



Open for day use Mar 12 – Oct 31

Open for camping Mar 12 – Oct 31

Campground is closed during autumn and winter season.


Contact Details

Call for reservations: 800-452-5687

Call for info: 800-551-6949

Call park: 503-793-9885

Official Website: Ainsworth State Park


Area Attractions

Suggested Equipment for Ainsworth State Park:


The following activities within the park should be done with utmost caution. Make sure that you have the proper protective gear and equipment necessary to make your adventures safe and accident-free. We advise you to read the TIPS underneath each activity to serve as a guide on what you may need to bring in order to enjoy your stay fully.

Activities & Tips


Ainsworth State Park is a must-visit state park in Oregon. Check out other state parks in Oregon here.

Oregon State Parks