The Sisters Trails Alliance is a non-profit organization, whose mission is to connect people and communities to each other and their natural surroundings. We plan, build and maintain multi-user, non-motorized trails in and around Sisters, Oregon.  

Coyote by Nate Weber
Dark-Eyed Junco by Anna Landon
Flammulated Owl by Neya Kountchev
Manzanita by Bethany Gunnarson
Mule Deer by Sarah Leonard
Peck's Penstemon by Shea Robertson
Ponderosa Pine Cone by Lexie Miller
Red-breasted nuthatch by Anna Landon
Rufous hummingbird by Anna Landon
Yarrow by Katie Ryan

Our slideshow features artwork by Sisters students & teachers that will be featured on two new interpretive signs along the Tollgate to High School trail. The new signs should be installed late spring or early summer.


February 17, 2021: Whychus Creek still needs us

February 9, 2021: Students create content for trail signs and here's a link to a ktvz story about the project

December 22, 2020: Fatten (bike) up for Winter

December 15, 2020: Sisters Tie Trail is STA's backyard secret

November 17, 2020: STA carves out (yet another!) new trail

November 2, 2020: Volunteers Install Kiosk at Peterson Ridge Trailhead

October 20, 2020: Running promotor donates $1,000 to STA

September 6, 2020: STA Announces new PRT Connector Trail

August 4, 2020: New Peterson Ridge Trailhead dedicated

Thanks to our friends at Central Oregon Trails Alliance for providing these suggested guidelines for recreating responsibly:

1. STAY HOME – this is the safest option.
2. KEEP IT LOCAL – if you have to drive to ride, you’re probably too far from home! Take a walk or ride your bike around your neighborhood.
3. DISTANCE - most trails are single-track and it’s not possible to adhere to the minimum 6-foot distancing rule unless you go way off trail and that’s a bad idea. Additionally, many trails are muddy and need to dry out before riding. If you must be out, please use some of the numerous forest roads as this will allow for better distancing.
4. MORE DISTANCE - The Forest Service has closed the trailheads and day use areas and is no longer servicing their restroom facilities. Please respect these closures for the health of our community.
5. RESOURCE PROTECTION - if you’re out on the trails there’s a distinct risk of injury that would cause already constrained emergency resources to be depleted and possibly create exposure to COVID-19. Dial it back, the trails will be there.

Beware of Muddy Trails!
STA press release with information about preventing trail damage during muddy conditions.

Sisters Trails Alliance is a 501(c)3 nonprofit organization, Federal Tax ID 46-4076992, whose mission is to connect people and communities to each other and their natural surroundings. The organization maintains the Peterson Ridge Trail System, hosts an annual speaker series and supports various trail-related activities and events throughout the year.  P.O. Box 1871, Sisters, Oregon 97759, 541-719-8822

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