This map is not intended to be used to determine property ownership nor public fishing access. Consult official maps and appropriate resources for detailed access information.
From Steve Schweitzer's A Fly Fishing Guide To Rocky Mountain National Park, flyfishingrmnp.com:
Although Corral Creek is outside of the Rocky Mountain National Park boundaries, it deserves mentioning by virtue of passing this creek on the way into the Park property via destinations along the Poudre Pass Trail and Mummy Pass Trail. Cautious ...
CO-14 to Long Draw Road to Corral Creek Trailhead ~1 mile before Long Draw Reservoir. Corral Creek is a short jaunt of about 1.3 miles (one-way of easy hiking. The downhill trek in is quick and the uphill climb out is short and gentle. Corral Creel Trail follows the Park boundary (and Corral Creek and La Poudre Pass Creek) by just a few yards to the north. It commences at Corral Creek Trailhead and works its way north easterly through the Cache La Poudre Wild and Scenic Area. Just before the Park Boundary, the trail meets up with the Big South Trail from the north, which leads to Peterson Lake. Taking the trail spur into the Park over the footbridge crossing La Poudre Pass Creek gives you access to two wonderful hikes, Poudre Pass Trail and Mummy Pass Trail.