Near the heart of Evergreen, Alderfer/Three Sisters Park abounds with stunning vistas, landmark rock formations, beautiful old stands of ponderosa pine and the most trails per acre of any foothills park—nearly 15 miles on 770 acres. Once a working ranch for cattle, horses and foxes, Alderfer/Three Sisters is now a park that offers a variety of experiences, from hikes across rolling terrain to challenging rides to the top of Evergreen Mountain. Climbers enjoy bouldering on rock formations near the south trailhead. Pads are encouraged. Fixed protection is not permitted. “The Three Sisters” and “The Brother” are the landmarks of the terrain. Meadows burst with wildflowers in late spring and early summer. Birdlife includes turkey vultures, Cooper's hawks, red-shafted flickers, Stellar's jays, ravens and mountain bluebirds.