Bolt Mountain at Fish Hatchery Park
March 28 @ 10:00 am - 1:00 pm
Saturday, March 28th, 2026 10-1pm
Bolt Mountain at Fish Hatchery Park
Trip Leader: Katelyn Detweiler
Bolt Mountain is situated in a geologically and biologically rich area characteristic of the Klamath-Siskiyou Ecoregion. The rocks, soils and corresponding plant species found on Bolt Mountain display this wealth of biodiversity. A majority of the soils found on the mountain originate from the rock serpentinite. Unlike most fertile soils, serpentine soils lack calcium, nitrogen and other vital nutrients which most plants require to grow and thrive, and is also high in heavy metals and magnesium. Plants found growing on this soil have adapted to tolerate these extreme conditions.
The Bolt Mountain trail rises on a steady slope, 3.2 miles each direction. The group will travel through Jeffery pine, buckbrush, and manzanita mixed forest to open grassy slopes eventually reaching oak and madrone before reaching the rocky serpentine summit. The top of Bolt Mountain boasts views of the Siskiyous, east to Grants Pass, and south over the Applegate. The hike is 6.4 miles total and moderate difficulty.
Meet at 10am at the entrance to Fish Hatchery Park, 1980 Wetherbee Drive, Grants Pass, OR. There is a $5 entrance fee per vehicle to park at the trailhead. For more information please contact field trip coordinator Katelyn Detweiler at det**************@***il.com. To sign up, please follow the link: NPSO Bolt Mountain Hike.
