| Ontario/Toronto | Darlington Intake Tunnel, Toronto, Ontario | Whitby | Shaly limestone | 74.7 - 299.5 | 5.8 | 9.3 | N 63˚E | _ | [4] | |
| Ontario/Toronto | Heart Lake Tunnel in Toronto | Georgian Bay | Shale | 6.57 - 18.20 | 0.80 - 6.32 | 1.25 - 9.50 | N 10˚ - 48˚E, N 2 - 86˚W | _ | [3] | |
| Ontario/North Bay | Outcrop in North Bay, Ontario | _ | _ | 13.7 | 8.3 | _ | _ | D | [31] | |
| Ontario/Sudbury | Tunnel in Sudbury, Ontario | _ | Jasperoid | 45.7 | 44.82 | 51.71 | _ | _ | [13] [31] | |
| Quebec/Lake Beauchene | Tunnel in Lake Beauchene, Quebec | _ | Gneiss W. Mica, Quartz | 64 | 7.58 | 20 | N 70˚W | _ | [13] [34] | |
| Quebec/Churchhill | Cavern adit in Churchhill Falls, Quebec | _ | Gneissic | 305 | 11.72 | 13.79 | _ | OC | [35] | |
| Quebec/James Bay | Mine in James Bay, Quebec | _ | Monzonite/Syenite | 121.9 | 5.48 - 11.24 | 8.14 - 20.69 | N 0˚E | D | [31] | |
| Manitoba | Underground Research Laboratory in Manitoba | _ | Granite | 336.6 - 515 | 31.0 - 42.0 | 60.0 - 83.4 | _ | MSP | [26] [36] | |
| Manitoba | Underground Research Laboratory in Manitoba | _ | Granite | 420 | 45 | 60 | _ | _ | [23] [37] | |
| Manitoba | Underground Research Laboratory in Manitoba | _ | Granite | 470.1 - 471.5 | 54.5 - 62.5 | 57.1 - 69.3 | _ | _ | [38] | |
| 579.5 - 670.8 | 56.9 - 76.0 | 61.0 - 76.7 | ||||||||
| 745 | 46.8 - 51.8 | 57.9 - 61.5 | ||||||||
| 836.9 - 851.3 | 56.2 - 78.3 | 62.6 - 85.7 | ||||||||
| New York/Alma Township | Oil Field-Deep Boring in Alma Township, New York | _ | Sandstone | 502.9 | 10.17 | 15.69 | N 77˚E | HF | [19] | |
| New York/Briarcliff Manor | Outcrop in Briarcliff Manor, New York | _ | Gneiss | 5.6 - 13.1 | _1.48 - 3.62 | _0.08 - 11.39 | N 0˚- 90˚E, N64˚- 74˚W | OC | [13] | |
| New York/Clarendon | Deep Borehole in Clarendon, New York | _ | Sandstone/limestone | _ | _ | 10.24 | N 64˚E | USBM | [31] | |
| New York/Dale | Deep Boring in Dale, New York | _ | Sandstone | _ | 11.89 | 18.61 | _ | HF | [13] [39] | |
| New York/Niagara Gorge | Outcrop in Niagara Gorge, New York | _ | Dolomite | 0.2 - 6.7 | _0.3 - 2.28 | 6.0 - 6.21 | N34˚ - 55˚E | OC | [13] [40] | |
| New York/Nyack | Outcrop in Nyack, New York | _ | Diabase | 0.2 - 0.5 | 0.47 | 1.19 | N 2˚E | OC | [13] [41] |