Cape Henlopen State Park in Lewes in Sussex County, Delaware — The American Northeast (Mid-Atlantic)
90-MM Gun
This Gun: 90MM M2
| | Guns used at Fort Miles: 90 MM M1/A1 (Mobile), M1/M3 (Fixed) | |
Photographed by Pete Skillman, May 13, 2025
1. 90-MM Gun Marker
During World War II, the U.S. Coast Artillery used batteries, or groups, of four 90mm guns (two mobile and 2 fixed) in Anti-Motor Torpedo Boat/Anti Aircraft roles. Fort Miles had three such batteries during the 1940s. Batteries 5A and 5B were located near what is now the Point parking lot, and Battery 7 was located at Cape May, NJ.
Difference between gun displayed and original: This gun (M2) had a slightly more automated feed system for shells which could fire 23 rounds per minute. The barrel of the M2 could also depress to 10 degrees for use as an anti-tank gun, whereas the guns at Fort Miles (M1/A1 and M1/M3) could not.
- Range: 11.9 miles
- Shell: 24 lbs. AP and 23 lbs. HE
- Rate of Fire: 20 rounds per minute
- Crew: 13 men per gun
- Shell Delivery System: Shells were manually carried by two men from a truck using a special sling. The gun expelled the metal casing upon firing.
- At Fort Miles: December 1943-June 1945
Erected by Delaware State Parks.
Topics and series. This historical marker is listed in these topic lists: Forts and Castles • War, World II. In addition, it is included in the Delaware State Parks
this page online
Location. 38° 46.666′ N, 75° 5.438′ W. Marker is in Lewes, Delaware, in Sussex County. It is in Cape Henlopen State Park. It can be reached from Cape Henlopen State Park. Touch for map. Marker is at or near this postal address: 15099 Cape Henlopen State Park, Lewes DE 19958, United States of America. Touch for directions.
Regionally, this marker is on Delawares Beaches. It is also in the American Mid-Atlantic and on the Delmarva Peninsula. Globally, it is in the North Atlantic Region, North America, the Western Hemisphere, the Western World, and the Anglosphere. Historically, it finds itself in what was once New Netherland, one of the original Thirteen Colonies, and the Antebellum South.
Other nearby markers. At least 8 other markers are within walking distance of this marker: Fort Miles Historical Area (within shouting distance of this marker); 3-Inch Gun (within shouting distance of this marker); a different marker also named Fort Miles Historical Area (within shouting distance of this marker); Fort Miles in World War II (within shouting distance of this marker);
Photographed by Pete Skillman, May 13, 2025
2. 90-MM Gun Marker - wide view with gun
Credits. This page was last revised on February 20, 2026. It was originally submitted on May 13, 2025, by Pete Skillman of Townsend, Delaware. This page has been viewed 153 times since then and 21 times this year. Photos: 1, 2. submitted on May 13, 2025, by Pete Skillman of Townsend, Delaware.
