Madison Group
| Use attributes for filter ! | |
| Primary | Limestone |
|---|---|
| Named by | A. C. Peale, 1893 |
| Other | Shale |
| Named for | Madison Range |
| Overlies | Bakken Formation |
| Three Forks Group | |
| Regions | South Dakota |
| Montana | |
| Idaho | |
| Colorado | |
| Arizona | |
| Alberta | |
| Saskatchewan | |
| Manitoba | |
| Utah | |
| Date of Reg. | |
| Date of Upd. | |
| ID | 2174027 |
About Madison Group
The Madison Limestone is a thick sequence of mostly carbonate rocks of Mississippian age in the Rocky Mountain and Great Plains areas of western United States. The rocks serve as an important aquifer as well as an oil reservoir in places.
