Railroad Prairie Natural Area Delta Region Get Directions Tell us why this business is your favorite! Physical Address: U.S. 70 Hazen, AR GPS: N34.7804548 W91.5864910 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. Add to Trip Planner