Japanese coal is found in the extreme ends of the country, in Hokkaidō and Kyūshū, which have, respectively, 45 and 40 percent of the country's coal deposits. Kyūshū's coal is generally of poor quality and hard to extract, but the proximity of the Kyūshū mines to ports facilitates transportation. In Hokkaido, the seams are wider, can be worked mechanically, and offer a higher-quality coal. Unfortunately, these mines are located well inland, making transportation difficult. In most Japanese coal mines, inclined galleries, which extended in some places to 9.71 kilometers underground, were used instead of pits. This arrangement is costly, despite the installation of moving platforms. The result is that a miner's daily output is far less than in Western Europe and the United States, thus domestic coal costs far more than imported coal.