Longmont, city (1990 pop. 51,555), Boulder co., N Colo.; inc. 1885. It is a trade and processing center for a rich farm area irrigated by the Colorado–Big Thompson project. Vitamins, primary metal products, and manufacturing equipment are produced. The Dickens Opera House and the Pioneer Museum are there.
"Longmont." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (September 19, 2018). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/longmont
"Longmont." The Columbia Encyclopedia, 6th ed.. . Retrieved September 19, 2018 from Encyclopedia.com: http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/longmont