Tennessee trails · Holston Mountain West
A 17.5-mile loop in Tennessee, with 1,069 ft of climbing. Reaches Deep Gap and other pass/summit destinations. Managed by the U.S. Forest Service.
The climbing is spread fairly evenly along the route. It gives back about 4,500 ft along the way, so it rolls rather than climbing steadily.

USGS 3DEP ELEVATION × ESRI WORLD IMAGERY · VERTICAL ×1.5
FURNACE BRANCH access. About 1 h 13 min drive (31 mi) from Johnson City. 36.43124, -82.13795 · directions
On October 14, 2026 — the day this page was generated — first light reaches this trailhead at 7:08 a.m., the sun rises at 7:34 a.m. and sets at 6:54 p.m., and the last usable light fades about 7:19 p.m. (EDT) — 11 h 19 min of daylight. At about 2.7 mph plus 30 minutes per 1,000 feet of climbing, the 17.5-mile route takes roughly 7 h 01 min, so leaving the trailhead at sunrise puts you back around 2:36 p.m. — 4 h 18 min before sunset.