St. Clement's Island - Potomac River Museum
Colton's Point, MD
Chesapeake Bay Gateways Network

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Brief Description: In 1633, a group of Roman Catholics under the proprietorship of Cecil Calvert, the second Lord Baltimore, traveled from England in pursuit of a haven in the new world where they could practice their religion. When the colonists landed at St. Clement's Island in the Potomac River they celebrated the first Roman Catholic Mass in the original colonies. This story of Maryland's beginnings is told at the St. Clement's Island–Potomac River Museum.

Museum exhibits describe the conditions in England that drove the quest for religious refuge and tolerance, the difficulties of planning the new colony, and the perilous voyage on the Ark and Dove. The Museum also provides group tours to St. Clement's Island, a state park accessible only by boat. The island offers wonderful views across the Potomac River, hiking trails, picnic facilities, and interpretive panels.

Location / Directions:

From Washington, DC:

  • Take 495/95 Beltway to Exit 7A (Route 5 South to Waldorf).
  • Follow Route 5 to Waldorf and turn left in Waldorf to continue on Route 5. In Mechanicsville, Route 5 turns right. Continue on route 5 to Morganza.
  • Turn right on Route 242. Follow to Colton's Point. Turn left onto Bayview Road and follow Museum signs.

From Virginia:

  • Take State Route 301 to Route 234 (turn at the White House Hotel).
  • Take Route 234 South to Clements.
  • Turn right onto Route 242 and follow to Colton's Point. Turn left onto Bayview Road and follow Museum signs.
Address: St. Clement's Island - Potomac River Museum
38370 Point Breeze Road
Colton's Point, MD 20626
Visitor Phone: (301) 769-2222

Enjoy the museum exhibits, views of the Bay, or a boat trip to St. Clement's Island where there is a hiking trail and picnic area. Boat availability is seasonal; call for seasons and times.

St. Clement's Island Potomac River Museum is a site along the Potomac River Trail which connects with other Chesapeake Bay Gateways.

Boat Access Educational Programs Picnicking Tours / Walking Tours

Operating Hours: March 25 through September: M-F 9 a.m. to 5 p.m., Saturday and Sunday: 12 noon to 5 p.m. October 1 through March 24: Wednesday through Sunday from noon to 4 p.m.
Fees: $3 adults; $1.50 children 5 - 18; children 5 and under are free
Visitor Facilities: Museum, school programs,restrooms; country store, c.1900; resource Library; gift shop; pier and docking facilities

Chesapeake Bay Gateways Network - Comments or Questions: Call: 1-800-YOUR-BAY