- Mount Si Natural Resources Conservation Area (dnr.wa.gov)
The Mount Si Natural Resources Conservation Area (NRCA) was one of the first to be established in 1987. It was designated to protect numerous natural resources including outstanding geologic features, examples of old growth forest, wildflower communities, and habitat for mountain goat and other species of wildlife. The towering site is a scenic landmark and popular recreation area, offering views of the Olympic Mountains, Snoqualmie Valley, and the Cascade Mountains. The NRCA is 13,735 acres.
- Mount Si Natural Resources Conservation Area (NRCA) (summitpost.org)
The Mount Si Natural Resources Conservation Area (NRCA) is one of the most climbed regions of Washington State. The centerpiece of the area is a steep, rugged mountain ridge spanning across the Mount Si NRCA mostly west-east (with a couple of short offshoot ridges and highpoints). Although most recreational use occurs on popular destinations Mount Si, Little Si, and Mount Teneriffe, the lesser known peaks of the area (Green Mountain, Dixie Peak, Blowdown Mountain, and Crater Lake Mountain) also offer substantial recreational opportunities for outdoor enthusiasts.
- Lake Philippa
- Lake Isabella