It is situated on the southwestern border of Valhalla Provincial Park, 8.7 km (5.4 mi) west of Gladsheim Peak, and 19 km (12 mi) west of Slocan and Slocan Lake.

The mountain's name commemorates Michael Gregory, a resident of the Slocan area known to his friends as Gregorio, who drowned in a canoeing accident on Slocan Lake in 1971 returning from a climb of nearby Devils Couch.

This peak's name was submitted by Anthony Eweson of New Denver for consideration, and it was officially adopted March 4, 1974, by the Geographical Names Board of Canada.

[2][4] Based on the Köppen climate classification, Gregorio Peak has a subarctic climate with cold, snowy winters, and mild summers.

[3] The first ascent of the peak was made August 25, 1970, by Bob Dean and Howie Ridge.