This volume is the eleventh in a series which documents the technical papers of the mine ventilation symposium, which was initiated in 1982 by the Underground Ventilation Committee of the Society for Mining, Metallurgy, and Exploration, Inc. In more recent years, the event has expanded to include all of North America and is known as the US/North American Mine Ventilation Symposium. The US/North American Mine Ventilation Symposium 2006 designated 'Coal Mine Methane Capture and Utilization' and 'Diesel Issues for Underground and Surface Mines' as topics of special interest. Numerous papers...