| Highland to Ridgeland (Mississippi) | 1,560.59 mi (2,511.53 km) |
| Highland to Ridgewood (New Jersey) | 2,380.99 mi (3,831.83 km) |
| Highland to Rifle (Colorado) | 639.98 mi (1,029.95 km) |
| Highland to Rincon (Georgia) | 2,070.33 mi (3,331.87 km) |
| Highland to Ringwood (New Jersey) | 2,372.16 mi (3,817.62 km) |
| Highland to Río Grande (Puerto Rico) | 3,323.54 mi (5,348.72 km) |
| Highland to Rio Grande City (Texas) | 1,215.63 mi (1,956.37 km) |
| Highland to Rio Linda (California) | 395.54 mi (636.56 km) |
| Highland to Rio Rancho (New Mexico) | 599.80 mi (965.29 km) |
| Highland to Rio Rico (Arizona) | 401.55 mi (646.23 km) |
| Highland to Ripon (California) | 334.82 mi (538.85 km) |
| Highland to River Edge (New Jersey) | 2,385.03 mi (3,838.33 km) |
| Highland to River Falls (Wisconsin) | 1,496.04 mi (2,407.64 km) |
| Highland to River Forest (Illinois) | 1,676.09 mi (2,697.40 km) |
| Highland to River Grove (Illinois) | 1,675.47 mi (2,696.40 km) |
