The northern part of the range, north of Mount Rainier, is known as the North Cascades in the United States but is formally named the Cascade Mountains north of the CanadaâUnited States border, reaching to the northern extremity of the Cascades at Lytton Mountain.
The perimeter of Washington Park in Denver, CO is about 2.60 miles.
Lathrop State Park, located 2 miles (3 km) west of the city limits of Walsenburg, is Colorado's first state park and is over 1,600 acres (6.5 km 2) in size. Martin Lake and Horseshoe Lake offer fishing stocked by the Colorado Division of Wildlife, water skiing, boating, and jet skiing.