| Blackburn to Ridgeland (Mississippi) | 4,358.56 mi (7,014.43 km) |
| Blackburn to Ridgewood (New Jersey) | 3,314.23 mi (5,333.73 km) |
| Blackburn to Rifle (Colorado) | 4,619.18 mi (7,433.85 km) |
| Blackburn to Rincon (Georgia) | 4,014.77 mi (6,461.15 km) |
| Blackburn to Ringwood (New Jersey) | 3,314.99 mi (5,334.96 km) |
| Blackburn to Río Grande (Puerto Rico) | 4,118.51 mi (6,628.10 km) |
| Blackburn to Rio Grande City (Texas) | 5,012.91 mi (8,067.50 km) |
| Blackburn to Rio Linda (California) | 5,092.54 mi (8,195.64 km) |
| Blackburn to Rio Rancho (New Mexico) | 4,814.21 mi (7,747.72 km) |
| Blackburn to Rio Rico (Arizona) | 5,172.00 mi (8,323.53 km) |
| Blackburn to Ripon (California) | 5,138.49 mi (8,269.60 km) |
| Blackburn to River Edge (New Jersey) | 3,313.81 mi (5,333.06 km) |
| Blackburn to River Falls (Wisconsin) | 3,827.99 mi (6,160.55 km) |
| Blackburn to River Forest (Illinois) | 3,796.71 mi (6,110.21 km) |
| Blackburn to River Grove (Illinois) | 3,795.99 mi (6,109.05 km) |
