| Boulder to La Union | 5,250.93 mi (8,450.56 km) |
| Boulder to La Victoria de Acentejo | 4,926.76 mi (7,928.86 km) |
| Boulder to Laguna de Duero | 4,920.09 mi (7,918.12 km) |
| Boulder to Lalin | 4,736.04 mi (7,621.92 km) |
| Boulder to Lardero | 4,975.91 mi (8,007.96 km) |
| Boulder to Laredo | 4,896.10 mi (7,879.51 km) |
| Boulder to Las Cabezas de San Juan | 5,062.33 mi (8,147.03 km) |
| Boulder to Las Palmas | 4,990.20 mi (8,030.95 km) |
| Boulder to Las Rozas de Madrid | 5,000.98 mi (8,048.30 km) |
| Boulder to Las Torres de Cotillas | 5,217.46 mi (8,396.69 km) |
| Boulder to Lebrija | 5,058.98 mi (8,141.64 km) |
| Boulder to Leganes | 5,012.46 mi (8,066.78 km) |
| Boulder to Leon | 4,842.67 mi (7,793.52 km) |
| Boulder to Lepe | 4,995.72 mi (8,039.83 km) |
| Boulder to Linares | 5,114.36 mi (8,230.76 km) |
