This is the big boulder just behind the Acronym Boulder that is standing on a dirt pedestal. Rock quality is pretty good, if a bit sandy. This boulder offers at least one classic problem.
Walk down GSL for 10-15 minutes head to the right across the field and over the hill just after you pass the bench on the left of the trail. Hike toward the big boulder with the overhang. Horsefly is the big boulder suspended on the dirt pedestal.
Browse More Classics in Horsefly Boulder
Mountain Project's determination of some of the classic, most popular, highest rated routes for Horsefly Boulder:
Horsefly Traverse V3 Boulder, 15 feet
Featured Route For Horsefly Boulder