 Likewise, there are no mines in the area, nor any documented history of mining claims; the closest mines are located to the west in the Blue River mining district.The volcanic vents throughout the Mount Washington Wilderness are underlain by Eocene to Pliocene volcanic rock layers, which do not contain hydrocarbons for fossil fuels.While there is relatively little potential for geothermal energy in the High Cascades, there are hot springs along the western edge of the mountain range.