National Historic Landmark · attack submarine · Mt. Pleasant, South Carolina

USS Clamagore (SS-343)

Submarine of the in Mt. Pleasant, South Carolina. Added to the National Register in 1989, and a National Historic Landmark.

Open to visit National Historic Landmark Listed 1989

Photos via Wikimedia Commons · 6 in the Commons category

1fire
active

C-74 Fm Rx (prescribed burn) · 29 miles away

Interagency incident data as of 2026-10-17

Map ↓

What it is

USS Clamagore (SS-343) was a Balao-class submarine, which operated as a museum ship at the Patriot's Point Naval & Maritime Museum outside Charleston, South Carolina from 1979 to 2022. Built in 1945 for the United States Navy, she was still in training when World War II ended. She was named for the clamagore. A National Historic Landmark, she was the last surviving example of a GUPPY III type submarine. On 15 October 2022, Clamagore, stripped of sail and superstructure was removed from Patriots Point and towed to Norfolk, Virginia to begin final recycling.

Text from Wikipedia, CC BY-SA 4.0.

The record

Property type	Structure
Address	Patriot's Point, Mt. Pleasant, SC
County	Charleston County
Reference number	89001229
Type of place	attack submarine
Designations	National Historic Landmark
Contributing resources	1 structure

The nomination form, the document that argues why this place matters, is in the National Archives: Read the nomination ↗

Visiting

Address	Patriot's Point, Mt. Pleasant, SC
Coordinates	32.7898° N, 79.9076° W · Directions ↗
Nearest national park unit	Fort Sumter and Fort Moultrie National Historical Park · 3 miles · on Park Atlas
Federal campgrounds nearby	Buck Hall Recreation Area 26 miles

This one you can go inside. Hours and admission change with the season; the website above has the current schedule.

At a glance

State: South Carolina
County: Charleston County
Listed: 1989
Type: Structure
Landmark: Yes

Cell signal

Verizon: 5G
AT&T: 5G
T-Mobile: 5G (fast)

Outdoor coverage as modeled by carriers in FCC filings as of 2025-12-31. This product uses FCC APIs and/or Data but is not endorsed or certified by the FCC.

Official links

Sister site

Park Atlas

Every unit of the National Park System, with its fees, hours, alerts and campgrounds.

Open Park Atlas →

This record is built from National Park Service sources, re-read every Saturday, and Wikidata, re-read on the first Saturday of each month. Register Atlas is independent and is not affiliated with any agency, and a listing does not mean a place is open to visitors. How the data is built →

Explore

Map

Nearby in Charleston County

All listings in Charleston County →

Landmark · under 0.1 km

USS Laffey

National Historic LandmarkListed 1983

Landmark · 0.1 km

USS Yorktown (CV-10)

National Historic LandmarkListed 1982

Charleston Old and Historic District (Boundary Increase)

BuildingListed 1986

Local history books for Charleston County

We earn a small commission if you buy through these links. It does not change what we list.

The Huguenot Church in Charleston
Margaret Middleton Rivers Eastman and Richard Donohoe & Maurice Eugenie Horne Thompson, 2018
Find at Bookshop.org
St. Philip's Church of Charleston
Dorothy Middleton Anderson and Margaret Middleton Rivers Eastman, 2015
Find at Bookshop.org
Charleston's longest green line
Donald M. Williams, 2011
Find at Bookshop.org
Six miles to Charleston
Bruce Orr, 2010
Find at Bookshop.org
Vital signs in Charleston
Carolyn B. Matalene and Katherine E. Chaddock, 2009
Find at Bookshop.org

Guidebooks to historic places in South Carolina

Classic Carolina road trips from Columbia
Thomas M. Poland, 2014
Find at Bookshop.org
Columbia Civil War landmarks
Tom (Historian) Elmore, 2011
Find at Bookshop.org
Touring the Carolinas' Civil War sites
Clint Johnson, 2011
Find at Bookshop.org
A tour of historic Sullivan's Island
Cindy Lee, 2010
Find at Bookshop.org

Titles come from Open Library's catalog, matched by subject heading or by title.

Reference

Questions people ask

Can I visit USS Clamagore (SS-343)?

Yes. USS Clamagore (SS-343) is recorded as open to the public.

Source: Wikidata

Where is USS Clamagore (SS-343)?

Patriot's Point, Mt. Pleasant, Charleston County, South Carolina. The nearest national park unit is Fort Sumter and Fort Moultrie National Historical Park, 3 miles away.

Source: Fort Sumter and Fort Moultrie National Historical Park

Where is the nomination form for USS Clamagore (SS-343)?

The National Archives holds the nomination form, the document that made the case for listing.

Source: National Archives

Are there campgrounds near USS Clamagore (SS-343)?

One federal campground is within reach, Buck Hall Recreation Area, 26 miles away.

Source: Campsite Atlas

Is there cell service at USS Clamagore (SS-343)?

FCC coverage maps show Verizon 5G, AT&T 5G, and T-Mobile 5G at the listed point. Coverage indoors and behind old masonry is another matter.

Source: FCC Broadband Map

Is there a wildfire near USS Clamagore (SS-343) right now?

1 active incident within 50 miles as of 2026-10-17, nearest C-74 Fm Rx, 29 miles away.

Source: Map

Sources

Location, type and contributing counts come from the National Park Service's National Register spatial data. Listing dates come from the National Register office's spreadsheet where it carries the listing. Construction date, architect, style, photograph and encyclopedia link come from Wikidata and Wikimedia Commons, matched on reference number 89001229. Nothing here is transcribed by hand. The nomination form and photographs ↗ at NPGallery are the original nomination as filed with the National Park Service, and the form is often the best description of the place. The description under "What it is" is the opening of the Wikipedia article, CC BY-SA.