Devonshire Road access. Traveling north on the Parks Highway, make a left turn onto E. Devonshire Rd. Yield, as the left turn is an un-controlled intersection. Open 24/7 year-round is the Trapper Creek Watering Point. This newly constructed facility is lighted with security and accepts quarters, ones, fives, tens, twenties, and major credit cards for your water fill-up needs. $0.13/gallon.