That one on the right is a Citroen-Kegresse… popular in rich snow resorts like Aspen and Tahoe. Classiest half-track ever made.
Via Dark Roasted Blend
“Sitting behind the Portland Company foundry, this Caterpillar “60” has a 10-ton Sargent snowplow with side wing plows on each side. Here we can see how extensive the pulley system is to raise the plows.”—Fletcher, David H. ‘The Portland Company 1846-1982.’ Charleston, S.C. : Arcadia Pub., 2002. 113.
If this is vintage, it was probably done to deliver the mail, with a snorkeled exhaust for creek crossings.
(Source: ralphfury, via paperstreetsoapinc)