Hike Dorr Mountain South Ridge Loop
What to Expect
Safety Advisory
The iron rungs and ladder sections are exposed and unforgiving when wet — granite becomes genuinely slippery after rain or heavy fog. If conditions are damp, consider rerouting to the Dorr Mountain North Ridge trail instead.
Dogs are banned on this trail for good reason — the ladder and rung sections are not navigable on four legs, and there's no safe way to carry a medium or large dog through these passages.
Several sections along the south ridge have steep drop-offs with no railings. Keep children within arm's reach during the upper ridge traverse.
Trail Details
Pro Tips
Start from the Sieur de Monts side rather than the Canon Brook approach — the parking area off Route 3 near the Tarn fills up later than the main Sieur de Monts lot, buying you an extra hour of availability on summer mornings.
Wear boots with serious ankle support, not trail runners. The iron rungs and ladder sections demand confident foot placement on slick granite, especially if there's any morning dew or recent rain.
Hit the summit around late afternoon in September or early October — the light hits Frenchman Bay at a low angle that turns the water gold, and you'll have the ridge mostly to yourself after the day-trippers clear out.
Photos
NPS
