Pinnacle Rock State Park

The rock itself is hard to miss from the road — a jagged sandstone fin rising above the tree canopy on US-52, its profile unchanged since the highway was built around it in the 1930s. Geologically, the formation sits on the northern flank of the Abbs Valley Anticline and is composed of Stoney Gap Sandstone, shaped over millions of years into what erosion carved from a spur of the surrounding ridgeline. A staircase climbs to an observation area at the top, giving views across the Bluestone River Valley. The park is day-use only with no overnight accommodations, so plan the stop as a stretch-and-look rather than an overnight.

For riders, the stop works on two levels. Pull off, walk the short overlook trail, and you get a ground-level sense of how large the formation actually is before continuing south. Local tradition holds that passing the rock on Route 52 marks the threshold into Mercer County's coalfields — and that holds up on the road. Continuing south on Coal Heritage Road, the two-lane runs through communities that grew up around the coal industry, and the character of the landscape shifts noticeably. Twin Falls and McDowell County are part of that same loop, and the roads through them stay quiet and largely untrafficked.