| Harker Heights to Mountain Brook (Alabama) | 658.43 mi (1,059.64 km) |
| Harker Heights to Mountain Home (Arkansas) | 473.56 mi (762.12 km) |
| Harker Heights to Mountain Home (Idaho) | 1,293.42 mi (2,081.55 km) |
| Harker Heights to Mountain House (California) | 1,434.28 mi (2,308.24 km) |
| Harker Heights to Mountain Park (Georgia) | 810.41 mi (1,304.23 km) |
| Harker Heights to Mountain Top (Pennsylvania) | 1,393.54 mi (2,242.69 km) |
| Harker Heights to Mountain View (California) | 1,458.20 mi (2,346.74 km) |
| Harker Heights to Mountlake Terrace (Washington) | 1,738.18 mi (2,797.32 km) |
| Harker Heights to Mukilteo (Washington) | 1,742.42 mi (2,804.15 km) |
| Harker Heights to Muncie (Indiana) | 932.23 mi (1,500.27 km) |
| Harker Heights to Mundelein (Illinois) | 939.46 mi (1,511.92 km) |
| Harker Heights to Munhall (Pennsylvania) | 1,182.55 mi (1,903.13 km) |
| Harker Heights to Munster (Indiana) | 917.33 mi (1,476.29 km) |
| Harker Heights to Murfreesboro (Tennessee) | 726.58 mi (1,169.32 km) |
| Harker Heights to Murphy (Texas) | 148.44 mi (238.88 km) |
