Roberts International Airport (IATA: ROB, ICAO: GLRB), informally also known as Robertsfield, is an international airport in the West African nation of Liberia. Located near the town of Harbel in Margibi County, the single runway airport is about 35 miles (56 km) outside of the nation's capital of Monrovia, and as an origin and destination point is referred to as "Monrovia" and locally is often referred to simply as "RIA." The airport is named in honor of Joseph Jenkins Roberts, the first President of Liberia.