Currently Dall's Sheep is on the Blue List of species and subspecies of special concern (formerly described as "vulnerable"). While both Dall's and Stone's sheep can be negatively affected by human disturbance and domestic livestock, neither is in danger of being affected at this time, due to the protected status of Dall's Sheep habitat and the large size of the Stone's Sheep populations and the relative lack of adverse effects on their habitats. This review found no reason to change the provincial status.
Demarchi, R.A., Hartwig, C.L. 2004. Status of Thinhorn Sheep in British Columbia. Ministry of Water, Land and Air Protection. Species Status Report. B119