northwest geology field trips
- Field trip to the Wells Creek volcanics, North Fork Nooksack River (nwgeology.wordpress.com)
The Wells Creek Volcanic Member of the Nooksack Formation (Tabor and others, 2003; see refs below) is found in the vicinity of Nooksack Falls, east of Glacier, Washington. These Middle Jurassic island arc rocks form steep yellowish cliffs along the Mount Baker Highway (Route 542) just east of the Excelsior Pass trailhead, where they crowd the highway against the deep gorge of the North Fork Nooksack River…