MD 202 begins at an intersection with MD 725 (Marlboro Pike) just east of the town of Upper Marlboro. MD 725 provides access to U.S. Route 301 (US 301, Robert Crain Highway) to the east and forms the Main Street of Upper Marlboro to the west. MD 202 heads northwest as Largo Road, which immediately crosses Collington Branch just above its confluence with the Western Branch of the Patuxent River.
MD 202 begins at an intersection with MD 725 (Marlboro Pike) near Upper Marlboro. MD 725 connects to US 301 to the east and serves as Main Street in Upper Marlboro. MD 202 then heads northwest on Largo Road, crossing Collington Branch before reaching its confluence with the Western Branch of the Patuxent River.