| Grass Valley to Rosemont (California) | 49.47 mi (79.61 km) |
| Grass Valley to Rosemount (Minnesota) | 1,479.00 mi (2,380.22 km) |
| Grass Valley to Rosenberg (Texas) | 1,579.27 mi (2,541.60 km) |
| Grass Valley to Roseville (California) | 34.47 mi (55.47 km) |
| Grass Valley to Roseville (Michigan) | 1,987.60 mi (3,198.73 km) |
| Grass Valley to Roseville (Minnesota) | 1,476.47 mi (2,376.15 km) |
| Grass Valley to Rossmoor (California) | 410.13 mi (660.04 km) |
| Grass Valley to Rossville (Maryland) | 2,358.74 mi (3,796.03 km) |
| Grass Valley to Roswell (Georgia) | 2,051.90 mi (3,302.21 km) |
| Grass Valley to Roswell (New Mexico) | 1,002.98 mi (1,614.14 km) |
| Grass Valley to Round Lake (Illinois) | 1,726.13 mi (2,777.95 km) |
| Grass Valley to Round Lake Beach (Illinois) | 1,727.23 mi (2,779.70 km) |
| Grass Valley to Round Rock (Texas) | 1,449.91 mi (2,333.41 km) |
| Grass Valley to Rowland Heights (California) | 402.96 mi (648.50 km) |
| Grass Valley to Rowlett (Texas) | 1,431.00 mi (2,302.98 km) |
