Cherokee Park, Halligan
You'll find just enough challenging terrain here to make it fun. Wildflowers are amazing, and camping is available. If you plan to fish, you must have a fishing license. This trail is closed from September 1 to May 1. Check regulations during hunting season.
Halligan Reservoir was built in 1911 for flood control and water retention for the city of Fort Collins. Due to heavy sedimentation problems, discussions have been underway to enlarge the dam to increase the size of the reservoir.
From Fort Collins: take Hwy. 287 northwest. Continue past Livermore about 3 miles and turn left on Cherokee Park Road 80C. Follow this wide dirt road 10.6 miles west to the small parking area on the right. Read and follow posted regulations. From Red Feather Lakes: Take Prairie Divide Road north. It is first marked 67J, then changes to 179. Turn right at 80C and go 3.6 miles to trail on left.