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Directions: There are two entrances to Castlewood Canyon State Park. Main Entrance: To reach the main entrance, take I-25 to Castle Rock and exit onto Founders Parkway (Exit 184), eastbound. Take Founders Parkway to Highway 86. Go east on Highway 86 approximately four miles to Franktown. At the traffic light in Franktown, turn right (south) on Highway 83 (S Parker Rd.). Go five miles south and the Park's main entrance is on the right. West Entrance: From State Highway 86, approximately half a mile west of Highway 83 in Franktown, turn south on Castlewood Canyon Road (County Road 51). The Park entrance is straight ahead.
Reservations: Reserve America - Castlewood Canyon State Park