Hiking Trail Map design. The Pacific Crest Trail, officially designated as the Pacific Crest National Scenic Trail, is a long-distance hiking and equestrian trail closely aligned with the highest portion of the Cascade and Sierra Nevada mountain ranges, The Pacific Crest Trail, the Appalachian Trail, and the Continental Divide Trail form what is known as the Triple Crown of Hiking in the United States! 8.5 oz, Classic fit, Twill-taped neck