| Keystone to Burley (Idaho) | 2,003.75 mi (3,224.72 km) |
| Keystone to Burlingame (California) | 2,379.39 mi (3,829.26 km) |
| Keystone to Burlington (Iowa) | 1,000.20 mi (1,609.66 km) |
| Keystone to Burlington (Kentucky) | 762.28 mi (1,226.77 km) |
| Keystone to Burlington (North Carolina) | 578.62 mi (931.19 km) |
| Keystone to Burlington (Vermont) | 1,242.64 mi (1,999.84 km) |
| Keystone to Burlington (Wisconsin) | 1,053.72 mi (1,695.80 km) |
| Keystone to Burnsville (Minnesota) | 1,290.81 mi (2,077.36 km) |
| Keystone to Burr Ridge (Illinois) | 987.39 mi (1,589.06 km) |
| Keystone to Burton (Michigan) | 1,028.72 mi (1,655.57 km) |
| Keystone to Burtonsville (Maryland) | 825.54 mi (1,328.59 km) |
| Keystone to Butler (Pennsylvania) | 892.82 mi (1,436.86 km) |
| Keystone to Butte (Montana) | 2,043.03 mi (3,287.94 km) |
| Keystone to Byram (Mississippi) | 537.76 mi (865.44 km) |
| Keystone to Cabot (Arkansas) | 728.58 mi (1,172.54 km) |
