Troops with mountain-uniforms were 26.1.1917:
9.Armee (LII.AK, 217.ID, parts of 89.ID, 218.ID, parts of bav. 12.ID)
11.Armee (Gren.Rgt.11, Garde-Jäger-Btl., Res.Inf.Rgt.21, Jg.Btl.9 and 12, Inf.Rgt.45, Res.Jg.Btl.11-13, 15, 19, Inf.Rgt.146, Schallmeßtrupp 4, Garde-Schützen-Btl. + units since 29.7.1918: Jg.Btl.8, Geb.Bttr.9, 14-16, 18, bav. Geb.Bttr.10, bav. Pi.Kp.106, Pi.Kp.201, Geb.MG-Abt. 210, 211, 214, 216, 217, 219, 220, 230, 231, Geb.MW-Kp. 171, 172, 176, Geb.Funker-Abt. 3-5, 9, 78, 79, Geb.Fernspr.Zug 814-816
14.Armee (all units)
Armee-Abt. A (parts of bav. Pi.Kp.23, Funker-Abt. 6b)
Armee-Abt. B (Infantry of 6.bav. Ldw.Div., parts of 7.Kav.Div., bav. San.Kp.3, 2./Fußart.Btl.2, MG-Abt. 201, 201 and 208, + units since 19.7.1918: Ul.Rgt.21, Ldw.Inf.Rgt. 38, 40 and 436, several Landsturm units)
Armee-Abt. Scholtz (Geb.MG-Abt. 212, 213, 215, 222-225, 232, 233, 247-250, Geb.Pi.Kp.101, Geb.Funker-Abt.1, 6a and 7, Geb.Vers.Haub.Battr. 941, Geb.Fernsprech- and Signalzüge)
Source: Kraus, vol. I, page 246