Abstract Since 1920, the Montezuma Valley Irrigation Company (MVIC), a mutual ditch company, has played an important role in the expansion and operation of agriculture in southwest Colorado's Montezuma Valley. The collection includes indexed files, field books, ledgers, maps, plans, and artifacts. Pre-1920 records document the Montezuma Valley Irrigation District, predecessor of MVIC. A portion of the collection is digitized and ...