| Blackrock to Harrison (Wisconsin) | 3,582.67 mi (5,765.75 km) |
| Blackrock to Harrisonburg (Virginia) | 3,481.07 mi (5,602.24 km) |
| Blackrock to Hartford (Connecticut) | 3,083.05 mi (4,961.68 km) |
| Blackrock to Hartford (Wisconsin) | 3,625.66 mi (5,834.94 km) |
| Blackrock to Hartselle (Alabama) | 3,995.07 mi (6,429.44 km) |
| Blackrock to Hartsville (Tennessee) | 3,868.15 mi (6,225.19 km) |
| Blackrock to Harvey (Illinois) | 3,677.59 mi (5,918.50 km) |
| Blackrock to Harvey (Louisiana) | 4,349.76 mi (7,000.27 km) |
| Blackrock to Hasbrouck Heights (New Jersey) | 3,178.46 mi (5,115.24 km) |
| Blackrock to Haslett (Michigan) | 3,500.70 mi (5,633.83 km) |
| Blackrock to Hastings (Minnesota) | 3,725.54 mi (5,995.68 km) |
| Blackrock to Hastings (Nebraska) | 4,126.24 mi (6,640.55 km) |
| Blackrock to Hattiesburg (Mississippi) | 4,247.12 mi (6,835.09 km) |
| Blackrock to Hauppauge (New York) | 3,145.49 mi (5,062.18 km) |
| Blackrock to Havelock (North Carolina) | 3,567.78 mi (5,741.78 km) |
