Eurycea wilderae
Silhouette: Andy Wilson · PhyloPic
In 3 days ~90% in a week >90%
The Blue Ridge two-lined salamander (Eurycea wilderae) is a species of salamander in the family Plethodontidae, endemic to the United States. This species is found in the southern Appalachian Mountains, mostly south of Virginia. To the north is a similar salamander, Eurycea bislineata, or the northern two-lined salamander. Its genus, Eurycea contains 33 species and includes taxa that have either a metamorphic life cycle or larval-form paedomorphosis. In species that metamorphose, there can be within-and among-population variation in larval life-history characteristics, e.g., duration of the larval period and size at metamorphosis. Intraspecific geographic variation in species of Eurycea has been attributed to several factors: temperature, stream order and productivity of the larval habitat.
Adult Blue Ridge two-lined salamanders are commonly found near stream banks. The larvae are aquatic, living in streams and seeps. Its natural habitats are temperate forests, rivers, intermittent rivers, and freshwater springs. It is threatened by habitat loss. This species is named after zoologist Inez Whipple Wilder, who studied biology of Eurycea species.
These amphibians are listed by the IUCN as a species of least concern for conservation. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Great Smoky Mountains National Park | 🇺🇸 United States |
More parks will be added in future updates.
Likely
About 50% of wildlife watchers report a Blue Ridge Two-lined Salamander sighting in Great Smoky Mountains National Park on a given day, based on 613 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the most-seen of the 36 amphibians we can rate there. Over three days the chance rises to about 90%, and over a week to over 90%, if each day is a fresh chance.
March and October–November
In those months about 70% of wildlife watchers report a Blue Ridge Two-lined Salamander in Great Smoky Mountains National Park on a given day, against about 30% in December and January, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Blue Ridge Two-lined Salamander sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
Only Great Smoky Mountains National Park, in our data
Great Smoky Mountains National Park is the only park on Wallace's Line with enough records to rate Blue Ridge Two-lined Salamander sightings: about 50% of wildlife watchers there report one on a given day.
Same genus: Eurycea
The closest relatives of the Blue Ridge Two-lined Salamander that you can see in Great Smoky Mountains National Park (genus Eurycea, Brook Salamanders) are Long-tailed Salamander (about 20%), Three-lined Salamander (about 10%) and Southern Two-lined Salamander (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Blue Ridge Two-lined Salamander is recorded against all the amphibians logged in Great Smoky Mountains National Park (613 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.
