Timber is mostly exported via the main ports of the country: the Freeport of Monrovia and the ports of Buchanan, Greenville and Harper (near Pedebo, a crossing point to Côte d’Ivoire). Especially Harper and Greenville are known as main outlets for the timber industry. Only containerized logs and processed-wood products can be shipped out of Monrovia, while the three other ports accept both logs (in bulk) and containerized logs or products. Containerization is becoming a most popular export method out of Liberia. Only self-loading ships operate in Liberia; ships cannot berth at Harper, hence logs/ timber products must be transferred to the ships by barge or rafts of floating logs.