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Arkansas's First State Park is centrally located, just under an hour's drive from Little Rock. To drive to Petit Jean State Park, Take Hwy 9 (Exit 108) off I-40 at Morrilton south 9 miles to Oppelo. Then head west 12 miles on Hwy 154 to the park; OR, take Hwy 7 off I-40 (south), OR, off I-30 (north) to Centerville, then east 16 miles on Hwy 154 to the park; OR, take Hwy 155 from Hwy 10 at Casa.