Thymallus arcticus
Thymallus arcticus
(Arctic Grayling)
Native Transplant

18 results for Thymallus arcticus (Arctic Grayling)
Download Data
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
30415 CO Arkansas drainage1993 11020002 Upper Arkansasstocked
30753 CO Arkansas River1998 11020005 Upper Arkansas-Lake Meredithcollected
30754 CO North Platte River1998 10180001 North Platte Headwatersstocked
30268 CO San Luis Valley (Rio Grande headwaters drainage)1986 13010003 San Luisextirpated
30478 CO South Platte (HUC6) non-specific1998 10190000 South Plattecollected
30212 CO state non-specific1914  unknown
269284 COBoulderBarker Reservoir2009 10190005 St. Vraincollected
1701030 COChaffee[No locality description provided]2021 11020001 Arkansas Headwaters 
30743 COEagleEagle River at Berry Station1900 14010003 Eaglefailed
30719 COEagleEagle River, west slope1899 14010001 Colorado Headwatersfailed
30718 COEagleFrying Pan River1899 14010004 Roaring Forkfailed
30742 COEagleFrying Pan River at Ruedi1900 14010004 Roaring Forkfailed
547155 COJacksonLower Big Creek Lake [Reservoir]2002 10180002 Upper North Plattestocked
269599 COLarimerJoe Wright Reservoir on the Cache la Poudre2009 10190007 Cache La Poudreestablished
30416 COLarimerZimmerman Lake, South Platte drainage1993 10190007 Cache La Poudreestablished
30740 COParkSouth Platte River at Florissant1900 10190001 South Platte Headwatersfailed
30741 COParkSouth Platte River at Webster1900 10190002 Upper South Plattefailed
267705 CORouttSteamboat/Pearl Lakes2000 14050001 Upper Yampaestablished

Data Disclaimer: Number of records does not imply species abundance. This summary represent collection records only and may not reflect the actual distribution of established populations. These data are preliminary or provisional and are subject to revision. They are being provided to meet the need for timely best science. The data have not received final approval by the U.S. Geological Survey (USGS) and are provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the data.


The data represented on this site vary in accuracy, scale, completeness, extent of coverage and origin. It is the user's responsibility to use these data consistent with their intended purpose and within stated limitations. We highly recommend reviewing metadata files prior to interpreting these data.

Citation information: U.S. Geological Survey. [2024]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [2/25/2024].

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For general information and questions about the database, contact Wesley Daniel. For problems and technical issues, contact Matthew Neilson.