When my folks lived in the Centennial Valley of SW Montana, the road out to the Interstate closed for the season when the first big snows hit in November, typically. Most everyone in the Valley took their cars out to Monida where warm storage was available, and travelled in and out via what they called "Snow Planes", like these. My parents owned one with a Ranger inverted six on it, three skis and a homebuilt cabin enclosure.....no heater.
At work, my Dad's outfit had a slightly bigger one with a Wright Whirlwind engine on it. That thing was a real blaster. Again, three skis. Neither of those had starters, and nobody pre heated them.....seriously. I suspect they were well worn. Light weight oil. I propped the Whirlwind more than once and the Ranger a few times.
By mid winter, they could go just about anywhere in the Valley with these things, and didn't have to worry about fences, etc, because of the amount of snow that Valley used to get.
BTW, it was a 38 mile trip out to the cars from their house. They usually went out once a month for supplies, overnighted in Idaho Falls, then made the trip back in the next day.
About the time they moved, the office had acquired a Thiokol tracked machine....magically, it had a heater, but it was a LOT slower.
MTV