High Quality Content by WIKIPEDIA articles! Roberts International Airport (IATA: ROB, ICAO: GLRB), informally known as Robertsfield, is an airport in the West African nation of Liberia. Located near the town of Harbel, the single runway airport is about 35 miles 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 facility with its 11,000 feet (3,400 m) long runway was an emergency landing site for the United States` Space Shuttle program and the principal international airport in the country. The airport is named in honor of Joseph Jenkins Roberts, the first President of Liberia.