Mammoth Gulch

The Mammoth Gulch Road (NFSR 176) is fairly easy and not very steep. It continues up the valley for two miles until closed by a gate on private property. The Nebraska Hill Road, NFSR 183 forks right (north) just after Mammoth Gulch Road leaves 4N. It is a mile long to its end at the site of the old reservoir where there is good fishing and camping. A half mile farther west on 4N, the Baltimore Ridge Road, NFSR 416 turns left (south) and climbs a mile up to an old mining area.

From the north, take Colorado Highway 119 south of Nederland to County Road 16 (East Portal Road) west to County Road 4N (Mammoth Gulch Road) south, then 1.5 miles to National Forest System Road (NFSR) 176. From the south take County Road 4 (Apex Road), from Colorado Highway 119 near Clear Falls, two miles north of Blackhawk. In Boulder Ranger District, Roosevelt National Forest.

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