Grand Prismatic Overlook Trail One-way planning track from the Fairy Falls parking area to the Grand Prismatic overlook. Retrace the approach for the return hike. 2026-08-14T00:00:00Z Official NPS trail page and map Grand Prismatic Overlook Trail Generalized planning geometry; mapped length 0.79 miles; official NPS map Carto IDs 107853, 131596, 131597, 186139, 186138. 2210.0 2210.0 2210.0 2210.0 2210.0 2208.0 2208.0 2219.0 2219.0 2220.0 2220.0 2220.0 2220.0 2220.0 2276.0 2276.0 2276.0 2216.0 2216.0 2216.0 2216.0 2216.0 2216.0 2216.0 2216.0 2216.0 2216.0 2216.0 2216.0 2216.0 2216.0 2216.0 2216.0 2216.0 2216.0 2216.0 2216.0 2216.0 2216.0 2216.0 2216.0 2237.0 2237.0 2237.0 2237.0 2237.0 2237.0 2237.0 2237.0 2237.0 2237.0 2237.0 2237.0 2237.0 2237.0 2237.0 2237.0 2237.0 2237.0 2237.0 2237.0 2237.0 2237.0 2237.0 2237.0 2237.0 2237.0 2237.0 2237.0 2237.0 2237.0 2237.0 2237.0 2237.0 2237.0 2237.0 2237.0 2237.0 2237.0 2237.0 2237.0 2237.0 2237.0