Colonial Beach, Virginia (CBVA) is a river and beach town located in the northwestern part of Westmoreland County on Virginia's Northern Neck peninsula. It is bounded by the Potomac River, Monroe Bay and Monroe Creek. It is located 65 mi (105 km) from Washington, D.C.; 70 mi (110 km) from the state capital of Richmond; and 35 nautical miles from the Chesapeake Bay.