| Mill Valley to Ridgeland (Mississippi) | 1,858.75 mi (2,991.36 km) |
| Mill Valley to Ridgewood (New Jersey) | 2,559.58 mi (4,119.24 km) |
| Mill Valley to Rifle (Colorado) | 803.11 mi (1,292.48 km) |
| Mill Valley to Rincon (Georgia) | 2,347.61 mi (3,778.11 km) |
| Mill Valley to Ringwood (New Jersey) | 2,549.59 mi (4,103.17 km) |
| Mill Valley to Río Grande (Puerto Rico) | 3,647.30 mi (5,869.77 km) |
| Mill Valley to Rio Grande City (Texas) | 1,593.10 mi (2,563.85 km) |
| Mill Valley to Rio Linda (California) | 80.35 mi (129.31 km) |
| Mill Valley to Rio Rancho (New Mexico) | 896.16 mi (1,442.23 km) |
| Mill Valley to Rio Rico (Arizona) | 790.86 mi (1,272.77 km) |
| Mill Valley to Ripon (California) | 77.87 mi (125.32 km) |
| Mill Valley to River Edge (New Jersey) | 2,564.13 mi (4,126.56 km) |
| Mill Valley to River Falls (Wisconsin) | 1,613.10 mi (2,596.03 km) |
| Mill Valley to River Forest (Illinois) | 1,848.12 mi (2,974.27 km) |
| Mill Valley to River Grove (Illinois) | 1,847.06 mi (2,972.56 km) |
