North Cartwright Road

The North Cartwright Road – Seaman's Gulch loop offers a true test for touring cyclists, winding through the scenic Boise National Forest. You'll encounter varied topography, from challenging unpaved segments with steep climbs in Seaman's Gulch to the quiet, enjoyable descent of North Cartwright Road, all set against a backdrop of Ponderosa pines and foothills. It's a demanding ride that rewards effort with diverse views.

Starting from Ridge To Rivers Parking, this difficult 22.4-mile (36.1 km) loop with 2052 feet (625 metres) of elevation gain typically takes around 2 hours and 26 minutes. Before you go, always check the Ridge to Rivers website for current trail conditions, as some sections can be particularly tough. This route is best suited for cyclists with good to very good fitness levels.

This loop is a favorite among local touring cyclists for its challenging nature and varied terrain, forming part of the extensive Ridge to Rivers Trail System. The area is characterized by dense forests and offers a true immersion into the natural beauty of the Boise National Forest, making it a notable option for those seeking a rigorous cycling adventure in Idaho.