The Tahoe Rim Trail is one of the most iconic and beautiful long-distance recreation trails in the world. The 165+ mile single-track trail is open to hiking, equestrians, and mountain biking (in most areas). The trail circumnavigates the ridge lines of the Lake Tahoe Basin, crossing six counties, four National Forests, three wilderness areas, two states and one state park. The Tahoe Rim Trail Association also manages approximately 30 miles of side and connector trails. The entire Tahoe Rim Trail is designated as a National Recreation Trail (aside from approximately 50 miles that are co-located with the Pacific Crest National Scenic Trail) and is, therefore, part of the National Trails System.