Get the MarineRadar appSatellite AISSatellite live trackingTrack any shipLive alerts112,000+ ships trackedDownload free

Seven Foot Knoll Lighthouse

Fl WR 6s🇺🇸Maryland, USOperational

Location & Light Range

About Seven Foot Knoll Lighthouse

Constructed in 1855, Seven Foot Knoll Lighthouse is recognized as Maryland's oldest screw-pile lighthouse. The structure stands 16 meters tall with its focal plane at 17 meters. It emits a white and red light. Initially positioned on Seven Foot Knoll in the Chesapeake Bay, it has since been replaced by a modern aid. The lighthouse was relocated to Baltimore's Inner Harbor to serve as a museum exhibit.

Why it matters: This structure is listed on the National Register of Historic Places.

Background
The Seven Foot Knoll Light was built in 1855 (according to some sources, 1856) and is the oldest screw-pile lighthouse in Maryland. It was located atop Seven Foot Knoll in the Chesapeake Bay until it was replaced by a modern navigational aid and relocated to Baltimore's Inner Harbor as a museum exhibit.

Light & Optic

Characteristic Signature
Fl WR 6s
Flash Type
Flashing
Light Color
WR
Flash Count
1 flash
Interval
6s
Focal Height
17m

Construction & History

Year Built
1855
Heritage Status
National Register of Historic Places listed place

References & Identifiers

Wikipedia
Read on Wikipedia →
Wikidata
Q7457261 →
OpenStreetMap
View on OSM →

Tower & Structure

Tower Height
16m

Location

City
Maryland
Country
🇺🇸US
Latitude
39.1555°
Longitude
-76.4090°

Nearby Vessels

Flag
Type
Name
Dist.
Live tracking · 50,000+ mariners

Find Seven Foot Knoll Lighthouse on the live nautical map

Plan voyages near US, see nearby vessels in real time, and explore 14,900+ navigation aids in the app.

Nautical mapNearby vesselsVoyage planning
Get the App

Frequently Asked Questions

How do mariners identify Seven Foot Knoll Lighthouse at night?+
Seven Foot Knoll displays the characteristic Fl WR 6s — 1 wr flash every 6 seconds. Each lighthouse has a unique flash pattern published in the List of Lights, allowing mariners to positively identify it and distinguish it from other navigation aids in the area. The wr color may indicate a specific sector or warning zone.
Which ports and harbors does Seven Foot Knoll Lighthouse guide vessels into?+
Seven Foot Knoll Lighthouse assists vessels approaching 5 nearby ports. The closest is SPARROWS POINT at 5 NM to the NW. Other ports served include Edgemere (5.1 NM NNW), PASADENA YARD (5.2 NM W), FLORIDA (6.6 NM W), OSPREY POINT (7.6 NM E). Mariners should consult the relevant chart for full approach and pilotage information.
Is Seven Foot Knoll Lighthouse still active and maintained?+
Yes, Seven Foot Knoll Lighthouse is currently operational. It is actively maintained and continues to emit its characteristic light signal for marine navigation. Most modern lighthouses are automated and monitored remotely by the national maritime authority.
What shipping routes pass near Seven Foot Knoll Lighthouse?+
Seven Foot Knoll Lighthouse is located within the US East Coast shipping lane — a major shipping corridor serving ports along the Atlantic seaboard of the United States. This makes it an important navigation reference for commercial shipping traffic in the region.
How can I track vessels near Seven Foot Knoll Lighthouse?+
You can track vessels near Seven Foot Knoll Lighthouse in real time using MarineRadar. The platform shows live AIS positions of ships in the area, including vessel name, type, flag, speed, and course. Use the "Track Vessels Nearby" button on this page to open the live map centered on this lighthouse.