(Ireland, 13', 2007, 40-15-a) across Ireland Creek Canal in Great Swamp Sanctuary in Walterboro, Colleton County, SC. US17A (Jefferies Blvd) S. (curves SW) 1.5 miles from jct with Wichman St. in Walterboro, NW (right - curves NE) on Ivanhoe Rd. 0.8 miles. Walk E. 250’ to the bridge. (N32 53.94 W80 40.79) Photo by Harry Hill 6-27-08.