Tamias umbrinus
Silhouette: Chloé Schmidt · PhyloPic
In 3 days ~50% in a week ~80%
The Uinta chipmunk or hidden forest chipmunk (Neotamias umbrinus) is a species of chipmunk in the family Sciuridae. It is endemic to the United States. Formerly known as Tamias umbrinus, phylogenetic studies have shown it to be sufficiently distinct from the eastern chipmunk as to be placed in a separate genus, Neotamias. The same studies have also suggested that Palmer's chipmunk may actually be a subspecies of Uinta chipmunk, although the two are still generally regarded as separate species.
The Uinta chipmunk is a medium-sized chipmunk, with adults ranging from 20 to 24 cm (7.9 to 9.4 in) in length, including the tail at 7 to 11 cm (2.8 to 4.3 in), and weighing an average of 67 g (2.4 oz). The predominant color of the summer coat varies from yellowish brown-grey to dark brown, often with a reddish tinge. Three wide, distinct dark blackish-brown stripes run down the back, separated and surrounded by four paler stripes of pale grey to white fur. Also, three dark and three pale stripes are on each side of the face. In the winter, the coat becomes duller and more greyish, and the stripes become less distinct. The ears are black, and the underparts a very pale grey.... Wikipedia →
Recording0:24
United States · 2026
© zacharycarling · iNaturalist · CC BY-NC 4.0
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Zion National Park | 🇺🇸 United States | |
| 2 | Grand Canyon National Park | 🇺🇸 United States | |
| 3 | Rocky Mountain National Park | 🇺🇸 United States | |
| 4 | Yellowstone National Park | 🇺🇸 United States | |
| 5 | Grand Teton National Park | 🇺🇸 United States |
Possible
About 20% of wildlife watchers report an Uinta Chipmunk sighting in Grand Canyon National Park on a given day, based on 48 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 9th most-seen of the 18 mammals we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
July–August and October
In those months about 30% of wildlife watchers report an Uinta Chipmunk in Grand Canyon National Park on a given day, against under 5% in November to February, the lowest months.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Uinta Chipmunk sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 5
Of the 5 parks where we can rate Uinta Chipmunk sightings, Grand Canyon National Park ranks 2nd at about 20%. The best odds are in Zion National Park (United States, about 70%).
Same genus: Tamias
The closest relatives of the Uinta Chipmunk that you can see in Grand Canyon National Park (genus Tamias, Eastern Chipmunks) are Cliff Chipmunk (about 50%) and Least Chipmunk (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Uinta Chipmunk is recorded against all the mammals logged in Grand Canyon National Park (48 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
