| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Ulm | city | Montana | United States | 47.43056 | -111.50639 | 3392 | 753 |
| Ulmer | city | Montana | United States | 46.35444 | -105.92889 | 2411 | 781 |
| Union historical | city | Montana | United States | 47.18722 | -105.30583 | 2959 | 28 |
| Unionville | city | Montana | United States | 46.54139 | -112.08417 | 5567 | 8060 |
| University Heights | city | Montana | United States | 46.03361 | -114.21472 | 4215 | 378 |
| Upper Bridger historical | city | Montana | United States | 45.73583 | -110.90306 | 5305 | 1143 |
| Upper Ellis Place | city | Montana | United States | 47.31528 | -112.33722 | 4399 | 28 |
| Ural historical | city | Montana | United States | 48.60972 | -115.25333 | 2198 | 228 |
| Urback Place | city | Montana | United States | 45.67444 | -110.45083 | 4806 | 101 |
| Utica | city | Montana | United States | 46.96833 | -110.09167 | 4507 | 59 |
|
|