Magothy River Nautical Chart
The Magothy packs Gibson Island, Dobbins Island's famous anchorage and miles of protected creeks behind a single entrance past Mountain Point. The chart shows the entrance bar, the deep main stem (10–20 ft), and the thin spots — including the bar into Sillery Bay that catches keelboats every summer.
NOAA ENC chart sample, depths in feet at MLLW — tap the chart to explore live. For planning only, not for navigation.
Open the interactive Magothy 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 Pooles Island to Sandy Point MD
Loading the NWS forecast… (NWS zone ANZ531)
Local knowledge
- Entrance past Mountain Point: roughly 8–10 ft on the marks, verify locally
- Sillery Bay bar carries only about 5 ft — deep-draft boats anchor outside Dobbins
- Main stem runs 10–20 ft; creeks shallow fast at the heads
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.
- Annapolis — about 6 NM
- Baltimore Inner Harbor — about 12 NM
- Rock Hall — about 13 NM
- Kent Narrows — about 13 NM
- Galesville & the West River — about 14 NM
- All harbor charts →