Its range includes the Yukon and Northwest Territories south through British Columbia, Alberta, and Saskatchewan to Wyoming, Montana, and Utah.

[1][2] This species was named in honor of its first collector Christina Ross.

[3] Colias christina has slight orange-red ground colour and is conspicuous by the yellow basal part of both wings.

The female is almost white, its forewing with only a little dark dusting at the distal margin and black, white-centred median spot.

[1] Its habitats include montane forest roads, trails, glades, and clearings.