Columbia Lake Dam
The 928th tallest dam in the world
Columbia is an unincorporated community and census-designated place (CDP) located within Knowlton Township in Warren County, in the U.S. state of New Jersey. While the community has existed for over a century, the CDP was created as part of the 2010 United States census. As of the 2020 census, Columbia had a population of 215. The area is served as United States Postal Service ZIP Code 07832.
Dam data from Wikidata (CC0) plus curated additions. Summary from Wikipedia (CC BY-SA).