Cadillac Mountain South Ridge Trail

The trail begins on the roadside shoulder just past Blackwoods Campground. There’s no road sign for the entrance, and parking is limited in summer, especially between 9 a.m. and 3 p.m. Don’t mistake the campground’s parking for a trailhead lot. The free Island Explorer serves Blackwoods from mid-June through October, which can help with access or a different descent; check its current schedule before you build the hike around a bus.

The first stretch is forested, with a steady grade that gets steeper as the path approaches the ridge. It’s a good contrast with what comes later, but don’t mistake the shaded start for an easy walk.

At Eagle’s Crag, a roughly 0.3-mile side loop leaves and rejoins the South Ridge. Take it for a rocky ledge above the forest, with the ocean farther out; it’s a worthwhile detour but isn’t included in the mapped through route or its distance. Back on the main trail, you reach the Featherbed, a small pond with a wooden bench. It’s a natural place to pause before the climb gets more rugged.

After the pond, the trail climbs steeply onto exposed granite. Above treeline, the path runs over open rock with Atlantic and island views; this is where the hike feels different from a standard wooded summit climb. The surface is rocky and uneven, so watch your footing, especially across the single iron rung on the route. The open ridge is also exposed to changing mountain weather, with little shade or shelter.

Near the top, the trail dips across an old road, then climbs again to the gravel summit access road. That last dip can feel like a false finish: there’s still an ascent before you reach the top.

The route arrives near the summit parking area, where road traffic and visitors make a sharp change from the quieter ridge. The true summit is beside the gravel access road. Look for two Coast and Geodetic Survey benchmarks established in 1856 and a 1954 USGS marker. One of Cadillac’s summit hotels stood east of the high point in the 1880s. On the open ridge, a little granite in the foreground helps show the scale of the slope and the islands beyond.

The standard trip retraces the South Ridge to the Route 3 shoulder, so save some energy for the climb and rough footing on the way down. If you’d rather descend a different trail, the shorter routes down North Ridge or Gorge Path can connect with the seasonal Island Explorer back to Blackwoods. That changes the hike’s finish and depends on bus service; it isn’t a loop returning directly to the South Ridge shoulder.

Dogs are allowed on this trail on a leash no longer than six feet. A park entrance pass is required year-round. There’s no separate activity fee or reservation listed for the hike.