| Blackrock to Port Chester (New York) | 3,155.82 mi (5,078.80 km) |
| Blackrock to Port Hueneme (California) | 5,190.21 mi (8,352.84 km) |
| Blackrock to Port Huron (Michigan) | 3,414.80 mi (5,495.59 km) |
| Blackrock to Port Lavaca (Texas) | 4,675.66 mi (7,524.75 km) |
| Blackrock to Port Neches (Texas) | 4,499.13 mi (7,240.65 km) |
| Blackrock to Port Orange (Florida) | 4,022.78 mi (6,474.03 km) |
| Blackrock to Port Orchard (Washington) | 4,540.31 mi (7,306.92 km) |
| Blackrock to Port Royal (South Carolina) | 3,847.22 mi (6,191.50 km) |
| Blackrock to Port Salerno (Florida) | 4,089.14 mi (6,580.83 km) |
| Blackrock to Port St. John (Florida) | 4,046.63 mi (6,512.42 km) |
| Blackrock to Port St. Lucie (Florida) | 4,090.47 mi (6,582.97 km) |
| Blackrock to Port Washington (New York) | 3,164.00 mi (5,091.97 km) |
| Blackrock to Port Washington (Wisconsin) | 3,604.29 mi (5,800.54 km) |
| Blackrock to Port Wentworth (Georgia) | 3,875.37 mi (6,236.81 km) |
| Blackrock to Portage (Indiana) | 3,660.59 mi (5,891.14 km) |
