| AGE | ERA | PERIOD | EPOCH | FORMATION | MEMBER | THICK | LITHOLOGY |
| Quaternary | Recent | Top Soil | |||||
| Quaternary | Pleistocene | Glacial Drift | 140 | Clay, gravel | |||
| Tertiary | Pliocene | ||||||
| Tertiary | Miocene | ||||||
| 50 | Tertiary | Oligocene | |||||
| Tertiary | Eocene | ||||||
| Tertiary | Paleocene | Turtle Mtn | |||||
| 65 | Cretaceous | Upper Cretaceous | Boissevin | 30 | Sand, sandstone | ||
| Cretaceous | Upper Cretaceous | Riding Mtn | Couler Odanah Millwood | 310 | Grey Shale | ||
| Cretaceous | Upper Cretaceous | Vermillion River | Pembina Boyne Morden | 155 | Shale | ||
| Cretaceous | Upper Cretaceous | Favel | 40 | Grey Shale | |||
| 100 | Cretaceous | Lower Cretaceous | Ashville | 115 | Shale | ||
| Cretaceous | Lower Cretaceous | Swan River | 75 | Sandstone | |||
| Jurassic | Upper Jurassic | Waskada | 200 | Banded green Shale | |||
| 150 | Jurassic | Upper Jurassic | Melita | 200 | Banded green Shale | ||
| Jurassic | Middle Jurassic | Reston | 45 | Limestone | |||
| Jurassic | Middle Jurassic | Amaranth | Evaporite | 45 | White Anhydrite | ||
| 200 | Triassic Permian Pensylvannian | St. Martin | 300 | Carbonate Breccia | |||
| 300 | Mississippian | Charles | 20 | Anhydrite, Dolomite | |||
| Mississippian | Mission Canyon | 120 | Limestone | ||||
| Mississippian | Lodgepole | 185 | Argillaceous Dolomite | ||||
| Mississippian | Bakken | 20 | Black Shale | ||||
| 350 | Devonian | Lyleton | 35 | Red Siltstone | |||
| Devonian | Nisku | 40 | Limestone | ||||
| Devonian | Duperow | 170 | Limestone | ||||
| Devonian | Souris River | 120 | Cyclic Shale | ||||
| Devonian | Dawson Bay | 65 | Limestone | ||||
| Devonian | Winnipegosis | 75 | Dolomite | ||||
| Devonian | Ashern | 12 | Dolomite | ||||
| 400 | Silurian | Interlake | 135 | Dolomite | |||
| Ordovician | Stonewall | 15 | Dolomite | ||||
| Ordovician | Stony Mountain | Williams Gunton Penitiary | 20 | Dolomite | |||
| Ordovician | Stony Mountain | Gunn | 20 | Shale | |||
| 450 | Ordovician | Red River | Fort Garry Selkirk Cat Head Dog Head | 170 | Dolomitic Limestone | ||
| Ordovician | Winnipeg | 60 | Sandstone | ||||
| 500 | Cambrian | Deadwood | 60 | Sandstone | |||
| Precambrian |