Mount Saint Helens - Mount Margaret Trail Trailheads and campsites in the Mount Margaret area of Mount Saint Helens, WA cht Coldwater Lake ffFormed by the 1980 eruption of Mount St. Helens. 46.31409 -122.22616 46.31113 -122.22968 46.31083 -122.23320 46.29802 -122.25877 46.29245 -122.26641 46.29286 -122.26392 46.28746 -122.26744 46.28741 -122.26006 46.29049 -122.25955 46.29120 -122.25620 46.28924 -122.255430 46.30271 -122.23251 46.31284 -122.22315 46.31409 -122.22616 http://dev.live.com/virtualearth/sdk/img/hiking_icon.gif Walk back to the car. A long walk back to our car.