How to reach:
To reach the bench marks from the intersection of U.S. Highway 17 and State Road A1A in Yulee, proceed NW on U.S. Highway 17 for 14.3 km (8.9 mi) to Owens Road; then turn left and proceed SW on Owens Road for 1.3 km (0.8 mi) to the junction of White Oak Plantation (a dirt road); then turn left and proceed NW on White Oak Road for 2.7 km (1.7 mi) to a guard house and a gate. From the guard house go 0.8 m (0.5 mi) north to a wooden bridge over Little St. Mary's River. The bench marks are along the road between the gate and the bridge. The tide gage and staff were on the wooden bridge.