Name the 50 most remote cities based on population. For example, for the 1st column, you are naming the cities OF AT LEAST 100K population which are farthest from the closest 100K+ city. SEE NOTES.
NOTES - The four columns are as follows, from left to right: 100K+, 250K+, 500K+ and 1M+ - populations are CITY PROPER. As another example, 2nd column is cities OF AT LEAST 250K farthest from another 250K+ city. Some of the first two columns, and a little of the third are quite difficult as the cities are not well known.