Version history for: Larsen, Jeremy C., Assmus, Kenneth C., Causey, J. Douglas, and Zientek, Michael L., 2004, Rectified images of selected geologic maps in the northern Rockies area, Idaho, Montana, Washington, and Wyoming: U.S. Geological Survey Data Series 106 [available on the World Wide Web at http://pubs.usgs.gov/ds/106/ ]. Version 1.0 November 23, 2004 Initial release on online at http://pubs.usgs.gov/ds/106/