St. Marys City & the St. Marys River Nautical Chart
Maryland's first capital sits on one of the Bay's most beautiful rivers — deep (15–30 ft), protected, and nearly empty. The chart shows the run in from the Potomac past St. George Island, Horseshoe Bend off the college waterfront, and the anchorage under Church Point.
NOAA ENC chart sample, depths in feet at MLLW — tap the chart to explore live. For planning only, not for navigation.
Open the interactive St. Marys City & the St. Marys River chart → Plan a trip here — depth-checked for your boat →Free, no signup — works on your phone and installs like an app.
Marine forecast — Chesapeake Bay from Drum Point MD to Smith Point VA
Loading the NWS forecast… (NWS zone ANZ534)
Local knowledge
- 15–30 ft nearly the whole river — one of the Bay's easiest deep approaches
- Horseshoe Bend: superb all-weather anchorage off the college
- Mouth is open to the south — pick the bend that blocks the forecast wind
On the chart
- Official NOAA ENC data with soundings in feet at MLLW — see how to read a chart
- Buoys, lights, hazards and restricted areas — tap any mark for details
- NOAA tide & current stations with live predictions
- GPS position, route planning and boat-profile depth warnings
Nearby harbors
Straight-line distances for rough passage planning — use the route tool for real courses and times.
- Solomons Island — about 9 NM
- Point Lookout & the Potomac Mouth — about 11 NM
- Reedville — about 22 NM
- Smith Island — about 22 NM
- Colonial Beach — about 25 NM
- All harbor charts →