NBM Dive Site Resource
U-1105
Piney Point / Potomac River, Maryland, United States
The Black Panther: an Alberich-coated submarine preserved underwater in Maryland's Potomac River. MHT describes an advanced dive with strong currents and near-zero visibility. Review the official visitor sheet; the agency says no commercial charters serve the site and prohibits anchoring on or near the preserve.
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Historic Photograph
Aquatic life at this dive site
What divers may encounter
Three reviewed connections are featured here. Sightings vary by season, conditions, and chance, so they are never guaranteed.
Aquatic life research in progress
NBM is reviewing a likely local species for this position.
Aquatic life research in progress
NBM is reviewing a likely local species for this position.
Aquatic life research in progress
NBM is reviewing a likely local species for this position.
Site media
Photographs
Three views rotate from the published gallery on each visit.
Contributor media
Dive videos
Three featured video positions are reserved on every profile.Regional location and nearby land
Location map
Regional overview includes nearby land for orientation. It does not establish a navigation waypoint or an entry location.Map data © OpenStreetMap contributors
Recent field observations
Diver-reported temperatures
Automatically checked observations from dives during the past 14 days. Three reports are visible at a time; scroll for more.A report that passes the automatic checks will appear here with the dive date, diver’s display name, and temperatures at each depth.
Reports are automatically checked for plausible dates, depths, and temperatures. They are observations, not forecasts; confirm conditions before diving.
Why divers know this place
Highlights
Exposed conning tower and upper-deck features of the Alberich-coated Black Panther; much of the submarine lies under sediment.
Shipwreck-only module
The wreck
This section appears only on shipwreck records and brings the vessel, its loss, present condition, access, and responsible wreck-diving considerations into one place.
- Vessel type
- German Type VIIC/41 submarine
- Year built
- 1944 (launched)
- Year sunk
- 1949
- Cause of loss
- Surrendered in 1945 and finally sunk during U.S. Navy tests off Piney Point on 19 September 1949.
- Present condition
- Exposed conning tower and upper-deck features of the Alberich-coated Black Panther; much of the submarine lies under sediment.
- Penetration guidance
- External wreck context only. This record does not authorize penetration or artifact recovery.
Before you arrive
Access notes
MHT describes an advanced dive with strong currents and near-zero visibility. Review the official visitor sheet; the agency says no commercial charters serve the site and prohibits anchoring on or near the preserve. Confirm current access, restrictions, weather, tidal windows and support before planning a visit.
Plan within your training
Conditions and hazards
Strong currents, near-zero visibility, entanglement, sediment, and fragile wreck fabric. Follow the preserve's current mooring and visitor instructions; do not anchor on or near the wreck.
Independent resource notice
This record is a starting point for independent verification. Access, closures, moorings, weather, currents, depth, visibility, operator availability, and site conditions can change without notice. Confirm current information with the responsible operator, property owner, managing authority, or another qualified local source before planning or attempting a dive.