Arctic Grayling - Thymallus arcticusNative Fish
Roughfish
ITIS
NatureServe
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FishNet 2 
USGS NAS| HUC Code | Watershed Name | Occurrence | Source |
| 04020103 | Keweenaw Peninsula | Current | NatureServe |
| 04060103 | Manistee | Current | NatureServe |
| 10020001 | Red Rock | Current | NatureServe |
| 10020002 | Beaverhead | Historic | NatureServe |
| 10020003 | Ruby | Historic | NatureServe |
| 10020004 | Big Hole | Current | NatureServe |
| 10020005 | Jefferson | Historic | NatureServe |
| 10020006 | Boulder | Historic | NatureServe |
| 10020007 | Madison | Current | NatureServe |
| 10020008 | Gallatin | Current | NatureServe |
| 10030101 | Upper Missouri | Current | NatureServe |
| 10030103 | Smith | Current | NatureServe |
| 10030104 | Sun | Current | NatureServe |
| 10030105 | Belt | Historic | NatureServe |
| 10030201 | Two Medicine | Historic | NatureServe |
| 10030203 | Marias | Historic | NatureServe |
| 10030205 | Teton | Historic | NatureServe |
| 10040103 | Judith | Historic | NatureServe |
| 10050001 | Milk Headwaters | Historic | NatureServe |
| 10070001 | Yellowstone Headwaters | Historic | NatureServe |
Citation:
FishMap.org. 2025. Arctic Grayling - Thymallus arcticus. Available online at http://fishmap.org/species/Arctic-Grayling.html - last accessed November 4, 2025.
FishMap.org. 2025. Arctic Grayling - Thymallus arcticus. Available online at http://fishmap.org/species/Arctic-Grayling.html - last accessed November 4, 2025.
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Change Log
- 02/05/2024 10:01:04
Fixed issue with GBIF data being returned in eventDate field.
- 11/20/2018 11:35:34
Added iDigBio.org collection data to species maps.
- 11/15/2018 15:19:23
Added GBIF.org collection data to species maps.
- 09/20/2018 21:25:13
Started caching Fish Net 2 data. Hopefully this helps with some of the performance issues and loads.
- 09/14/2017 11:15:00
Fixed an issue preventing users from submitting records. Sorry for the inconvience! Please try again.
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