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.
The 18-mile Mount Vernon Trail is one of the Washington, D.C. Metro area's most popular trails. Just across the Potomac River from D.C. in Virginia, the trail links Theodore Roosevelt Island Park with George Washington's Estate in Mount Vernon.