Railroad Prairie Natural Area Delta Region Calculate Trip Get Directions Overview:East and west of Hazen is a remnant of the Grand Prairie, a noted bird sanctuary with native wildflowers and trees of the prairie, that shows what the area was like before the introduction of modern agriculture. Address: Railroad Prairie Natural Area U.S. 70 Hazen, AR GPS: N34.7804548 W91.5864910 Connect: Save to foursquare Miscellaneous No Smoking