Alderfer / Three Sisters Park

Alderfer/Three Sisters rock formations rises above the tress at the park. Photo by Steven Conley.

Alderfer/Three Sisters West Trailhead
5136 South Le Masters Road
Evergreen, CO 80439

Alderfer/Three Sisters East Trailhead
30357 Buffalo Park Road
Evergreen, CO 80439

Near the heart of Evergreen, Alderfer/Three Sisters Park has stunning vistas, landmark rock formations, beautiful old stands of ponderosa pine and the most trails per acre of any foothills park.

Alderfer/Three Sisters Park interactive map

Recently Completed Forest Management Project
In 2021, Jeffco Open Space conducted wildfire mitigation and forest restoration in Alderfer/Three Sisters Park. This work removed woody vegetation to a create a fuel break, strengthen emergency access, and improve forest health. This work built on the JCOS forest management along Buffalo Park Road in 2020 and is part of our  Conservation Greenpriont Goal 6 to perform over 1000 acres of forest management by the end of 2025.

In the summer and fall of 2019, Natural Resources staff conducted baseline forest inventories to identify treatment areas and to develop specific management objectives. Staff began removing trees in Spring 2021, and the project was completed in late Winter 2021 Please click the link below for more information.

Alderfer/Three Sisters Park Trailhead Expansion
Jeffco Open Space hosted a virtual community meeting on Wednesday, April 14 to discuss park action plans, regarding improved visitor experience, proposed trailhead expansion at both of Alderfer/Three Sisters Park’s East and West Trailheads, and increased safety for park visitors. A public comment period was open from April 14 – May 14. All comments were recorded for public record.

Alderfer/Three Sisters Park Map
Park Regulations Image