User:Kfc 930/sandbox

List of monuments
Working on adding acreage to List of National Monuments of the United States.

The first Area column is what was listed in the referenced source. This is what I think should be used in most if not all cases. The second Area column is what was on the individual monument wiki page on January 1, 2018, and I've highlighted columns that I think have large discrepancies. The third column list values from a blog-style website when there was a discrepancy, these are not well cited and may not be of any use. The fourth column lists areas from other agencies when there appeared to be a discrepancy.