North Ridge Trail
This trail can start at either the spillway to the east or at the entrance to the lodge at the north end. You immediately begin by climbing (from either direction) before the trail plateaus into a rolling, mile long, upper stretch. Typically muddy with "streams" running down the trail at the ascents/descents, this trail can be an interesting adventure.The trail is 3 miles one-way, but you can take the Red/Blue Blazes trail back to the start for a 6+ mile loop or head back on the Bridle Trail/North Ridge Trail for exactly 6 miles.
This trail goes by two names - Bridle Trail and North Ridge Trail (listed on North Park's trail map).