Formed by the re-designation of 1 Mountain Regiment in October 1944. In June 1945 it reverted to 1 Mountain Regiment and was disbanded at Brucklay Castle, Aberdeenshire in November 1945.
Illustrations of the formation badges under which a unit served or supported are given. This is no guarantee that the unit used this formations badge.
| Oct 44 | Formed from 1 Mountain Regiment | NW Europe | |
| Oct 44 |  |
52 Infantry Division | NW Europe |
| Jun 45 | Became 1 Mountain Regiment |
Batteries
| Oct 44 | 451, 452, 474 |