Economy of Sierra Leone small communities, walking is often the preferred method of transportation in Sierra Leone. There are 11,700 kilometres (7,270 mi) of highway in Sierra Leone, of which 936 km (582 mi) are paved. There are 800 km (497 mi) of waterways in Sierra Leone, of which 600 km (373 mi) are navigable year-round. Major ports of Sierra Leone include: Bonthe, Freetown and Pepel. Queen Elizabeth II Quay in Freetown represents the country's only deep water port facility capable of berthing large-hulled cargo or military vessels. There are ten airports in Sierra Leone, of which one - Lungi International Airport in Freetown
Literature of Sierra Leone Joe A. D. Alie, born in Moyamba, Sierra Leone, is a Professor at Fourah Bay College, the University of Sierra Leone. He has published a number of textbooks, including "A New History of Sierra Leone" and "A Concise Guide to Writing College and Research Papers". Osman A. Sankoh was born in Warima, Sierra Leone. He has been awarded the 1987 University of Sierra Leone Prize for Academic Excellence as well as the 1996 German Academic Exchange Service Prize for Academic Excellence and Exceptional Social Engagements by a Foreign Student. In 2007, he became the Executive Director of the INDEPTH Network.