| Elgol Sandstone Formation | |
| Period: | Bajocian |
| Age: | |
| Type: | Geological formation |
| Prilithology: | Sandstone |
| Otherlithology: | Mudstone |
| Unitof: | Great Estuarine Group |
| Underlies: | Lealt Shale Formation |
| Overlies: | Cullaidh Shale Formation |
| Thickness: | up to 32m (105feet) |
| Region: | Europe |
| Extent: | Inner Hebrides |
| Namedfor: | Elgol |
| Thickness Ts: | 22m (72feet) |
| Location Ts: | Port Na Cullaidh |
| Namedby: | Harris and Hudson |
| Year Ts: | 1980 |
The Elgol Sandstone Formation is a geological formation in Scotland, part of the Great Estuarine Group. It spans the transition between the Bajocian and Bathonian stages of the Middle Jurassic. The lithology consists of clay rich sandstone interbedded with silty fissile mudstone. [1]