Pinnacle Mountain State Park is located close to Little Rock, Arkansas. From I-430, take the  exit for Hwy 10 (exit 9) heading west for five  or six   miles or so, turn right at Pinnacle Valley Road and follow the signs to the park; the road twists and turns quite a bit on the way in to the park; OR; even easier, instead of turning onto Pinnacle Valley Road from Hwy 10, drive a bit further west until turning right onto Hwy 300; follow this a few miles until crossing over the Little Maumelle River; a nice dayuse area will be on the right along with the West Summit trailhead. (If you continue on Hwy 300 a bit further instead of turning into the West Summit/dayuse parking lot, you can turn right onto Pinnacle Valley Road to loop back into the park; this takes you past the East Summit trailhead, the Arkansas Arboretum Trail and the Visitor Center as well as other scenic spots)