Sites
| Site Identifier | Name | Location | Samples |
|---|---|---|---|
| 20IR157 | North Gap I | Keweenaw County | 1 |
| 20IR239 | Grace Peninsula | Keweenaw County | 1 |
| 20IR24 | Minong | Keweenaw County | 11 |
| 20IR259 | North Washington harbor | Keweenaw County | 1 |
| 20IR30 | Lookout | Keweenaw County | 9 |
| 20IR5 | Finn Point | Keweenaw County | 1 |
| 20IR6 | Siskiwit | Keweenaw County | 1 |
| 20KE20 | Lac LaBelle | Keweenaw County | 4 |