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Cooper Mountain Nature Park

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Explore the trails, natural garden and visitor facilities and enjoy the views and rare habitats at the new Cooper Mountain Nature Park near Beaverton.

Photograph of Cooper Mountain

Overlooking the Tualatin River Valley, the new Cooper Mountain Nature Park sits on the southern edge of Beaverton, shouldered by dense urban development to the north and open agricultural lands to the south. The 231-acre park offers visitors 3 1/2 miles of gravel trails traversing the park's rare habitats and natural features. Cooper Mountain Nature Park is operated through a partnership between Metro and the Tualatin Hills Park & Recreation District.

Discover Cooper Mountain with bird walks, guided hikes and more

Naturalists from Metro and the Tualatin Hills Park & Recreation District – as well as other experts – offer classes and tours for all ages at Cooper Mountain. View calendar items below for more information. Register for classes by calling 503-629-6350 or visiting THPRD's website.Register online

Getting there

From Highway 217 take the Scholls Ferry Road exit and head west on Scholls Ferry past Murray Boulevard. At Southwest 175th Avenue, turn right and go north, uphill, about 1.8 miles and turn left on Kemmer Road. The park entrance is on the south side of Kemmer Road.

From Southwest Farmington Road (Highway 10), turn south on 185th Avenue, which will become Gassner Road, turn left on 190th Avenue and left on Kemmer Road. Download a map

boy with ladybug

What you can do at Cooper Mountain Nature Park

Hike, walk, watch wildlife or simply enjoy the views when you visit Cooper Mountain Nature Park with your friends or family. More than three miles of trails with varying levels of difficulty traverse the park and include a 3/4-mile loop that is designed for accessibility.

The trails pass through each of Cooper Mountain's distinct habitats – from forest to prairie to oak woodlands. From these trails, visitors are rewarded with grand views of the Chehalem Mountains and Tualatin Valley, close-up looks at Oregon white oaks and wildflowers, and – if you are quiet and lucky – glimpses of rare animal species like the Northern red-legged frog and Western gray squirrel. Download the trail map

The park includes accessible restrooms and a Nature House for environmental education programs that will serve as a base for staff and volunteers. A demonstration garden located next to the nature house will showcase native and drought-tolerant plants suited to Cooper Mountain's dry climate and south-facing slopes. The plants have been selected to give back yard gardeners new ideas to try at home. More about natural gardening

For the benefit of wildlife please, leave your pets at home. No alcohol, smoking, bikes or equestrian use are allowed within the park. Bike racks are available near the Nature House. The park is open daily, dawn to dusk.

Park stewardship a joint venture

The Tualatin Hills Park & Recreation District provides day to day management at Cooper Mountain Nature Park. This includes park ranger operations, security service, educational programming, park maintenance and natural resources management. Voter-approved funds allowed Metro to purchase land on Cooper Mountain beginning in 1997. More land acquisition followed until 231 acres were under Metro's protection and care. Since that time, the natural area has been undergoing active restoration and land management. Volunteers have participated in nearly every aspect of Cooper Mountain's transformation – removing invasive species, restoring native grasses and wildflowers, planting more than 110,000 trees and shrubs, enhancing the oak woodlands and improving the small quarry pond. Metro's science team will continue to lead restoration activities at Cooper Mountain. Park development was funded through Metro's voter-approved 2006 natural areas bond measure and a grant from Oregon State Parks.

Visit other natural areas protected by Metro with the help of voters

Find out about upcoming sneak preview tours of newly protected natural areas, nature programs and volunteer opportunities by subscribing to the Metro GreenScene. Go

Download Cooper Mountain maps

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Metro parks

Activities at Cooper Mountain

Related Links

Cooper Mountain Demonstration Garden

Cooper Mountain Nature Park near Beaverton features a demonstration garden with colorful, low-maintenance, wildlife-friendly plants.

Acquiring natural areas

Find out more about the 27 target areas where Metro is acquiring natural areas and trails to safeguard water quality, protect fish and wildlife habitat, and ensure access to nature for future generations.

Natural gardening videos and how-to resources

Get tips from Metro's natural gardening expert, download gardening guides and publications, watch videos and discover more great resources for learning to garden without harmful chemicals.

nature note

Western gray squirrel making a comeback

Cooper Mountain is home to what many would consider the most beautiful rodent in America. “What? A beautiful rodent?” you may ask, thinking of drab rats and mice. Let Metro naturalist James Davis tell you all about this handsome tree squirrel. Learn more

Protected by voters

Chehalem Ridge

12,000 acres and counting

Thanks to two voter-approved bond measures, the Metro Natural Areas Program has protected more than 12,000 acres across the Portland metropolitan area. Caring for this land enhances water quality, wildlife habitat and recreation opportunities for future generations. Learn more

Planting guide

Cooper Mountain Demonstration Garden planting guide

Plant right for your site

Gather ideas from the Cooper Mountain demonstration garden for planting your own natural, pesticide-free garden at home. Learn more about the demonstration garden and download a planting guide. Go

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Did you know?

Green from the ground up

The Nature House and other facilities at Cooper Mountain have been built using many sustainable and energy-saving features:

  • photovoltaic system generating approximately 15 percent of power needs
  • benches, boardwalks and bridges made from recycled plastic lumber
  • Forest Stewardship Council certified framing lumber for the building
  • MetroPaint, a recycled interior/exterior latex paint and primer, used both inside and out
  • on-site storm water retention uses bioswales planted with native species to filter runoff from the parking lot and Nature House.

More about nature-friendly design
More about MetroPaint

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