CHAPARRAL PRAIRIE STATE NATURE PRESERVE - 67 ACRES Main Feature: A blackjack-post oak prairie opening with outstanding summer prairie wildflowers and butterflies. This is an outstanding cedar barren prairie with post and blackjack oak. It supports one of the most extensive populations of rattlesnake-master in the state. Prairie dock and spiked blazing-star are also unusually abundant at this site. Eleven state-listed species have been recorded from the preserve including spider milkweed, prairie false indigo, pink milkwort and Carolina buckthorn. Little bluestem is the dominant prairie grass. Several rare lepidoptera, such as Edward's hairstreak butterfly, have been reported from this preserve. Location: Located in Adams County approximately 3 miles northwest of West Union. Follow State Route 247 north to Chaparral Road (County Road 22-C), then go west to Hawk Hill Road (Township Road 23). The entrance is on the left side of Hawk Hill Road. Parking lot and trailhead are on the west side of the road. The Hawk Hill Loop Trail is 3/4 mile in length and includes trail-side interpretive signs. Chaparral Prairie State Nature Preserve Hawk Hill Road West Union, Ohio 45693 Phone: (937) 544-9750 67 acres. A blackjack-post oak prairie opening known for its summer wildflowers. Rare Lepidoptera like Edward's hairstreak butterfly, have been reported from the preserve. Located 3 miles northwest of West Union. Follow State Route 247 north to Chaparral Road (County Road 22-C). Go west to Hawk Hill Road (Township Road 23). Entrance is on left side of Hawk Hill Road. Parking lot/trailhead are on the west side of road.