Location: I-66 and Geo Wash Pkwy, Washington As we cross the Potomac into Virginia, keep left to stay on 66 west. Location: I-66 and Geo Wash Pkwy, Washington Exit…in Virginia for US 50 west. This shouldn’t say DC-US 50, as cool as the sign is, since the exit is in Virginia. Location: I-66 and Geo … Continue reading U.S. Route 50, I-66 to I-66/VA State Line