| Grenola Formation | |
| Type: | Formation |
| Age: | Early Permian (Wolfcampian) |
| Period: | Early Permian |
| Prilithology: | Limestone |
| Otherlithology: | Shale |
| Namedfor: | Grenola, Kansas |
| Region: | Midcontinent (Nebraska, Kansas, Oklahoma) |
| Country: | United States |
| Subunits: | Neva Limestone Salem Point Shale Burr Limestone Legion Shale Sallyards Limestone |
The Grenola Formation (or Grenola Limestone) is an early Permian geologic formation (Wolfcampian) with its exposure running north and south through Kansas and extending into Nebraska and Oklahoma, notably having the Neva Limestone member,[1] [2] which is a terrace-forming aquifer and historic Flint Hills building stone source secondary to the Cottonwood Limestone.