| Roberts Mountains Formation | |
| Type: | Geologic formation |
| Age: | Silurian period |
| Region: | Nevada, Idaho |
| Country: | United States |
| Underlies: | Lone Mountain Dolomite |
| Overlies: | Hanson Creek Formation |
| Thickness: | 600feet |
The Roberts Mountains Formation is a geologic formation in Nevada and Idaho.
It preserves fossils dating back to the Silurian period.