How to reach:
To reach the tidal bench marks from the intersection of State Route 20 (Rock Hall Avenue) and State Highway 445 (Main Street) in Rock Hall, head west on Rock Hall Avenue approximately 3.2 km (2.0 mi) to the end of the road, turn right north onto Lawton Avenue approximately 0.8 km (0.5 mi), turn right into Swan Creek Marina. The station is on the southern shore of Swan Creek, at Deep Landing, near the SE corner of Swan Creek Marina property line, near the railway boat hoist. It is on the NW corner of an old concrete foundation on the south side of a blue aluminum sided one story building. It is 0.58 m (1.9 ft) from the NE end of the same foundation, 17.62 m (57.8 ft) from the east end of the north concrete railway foundation of the boat hoist, and 32.31 m (106.0 ft) NW of a 0.15 m x 0.15 m (0.5 ft x 0.5 ft), marble property line monument, labeled 1905, set flush in the ground and marked by a steel post.