Explore the best trails near Grass Valley with hand-curated trail maps and driving directions as well as detailed reviews and photos from hikers, campers and nature lovers like you.
Christina D. on Hardrock and Osborn Hills Loop Trail
Easy. Nice short loops.
I took my over 50's ladies group up to hike a couple of the trails. We all made it okay but you I have to take into consideration you most definitely are hiking up and down a mountain. The paths are well used/maintained but there is a steep grade. The trails are used by lots of people so they are busy so not a whole lot of peace and quiet. It's nice that there are state maintained restrooms at the mine. Poison oak is on the sides of the trails so watch the kiddos and pets. We will do this trail again.