Why would a home building site be "only summer accessible"?
 

http://www.starvalleyrealty.com/075331.html

does that mean you can build a home, but you can't drive to it in the winter?

Yes. I've seen that kind of language referring to cabins up the canyons of Utah before.

The County roads are not plowed in the winter.

You are all correct...it means that it snows a lot and you won't be able to get there by car. We have a place up Cottonwood Canyon that is not accessible during the winter. We have to ski or sno-shoe in and even then it can be difficult if there is too much snow.

that county road is fine in the winter. I've been there. It would just be snow-packed. The ad is saying that little road going up to the home-site wouldn't be accessible in winter due to the grade and ice, I assume.

Who would want to build a house on such a site?

Seems to me that would severely decrease the value of the property. If someone doesnt' want to build on it, well, he has created an ugly road and ugly building site. But if someone wants to build, can only be built in summer and pain to get to in winter. Walking up steep icy slope.

Smoot always makes me giggle a bit.

My sister and brother-in-law have a cabin in Minnesota that is, in a sense, only "winter accessible" by car.

In the summer you have to get there by boat. In the winter you can drive across the ice, allowing delivery of large stuff, like building materials, though its recommended you use a snowmobile, not a car or truck.

I don't think they plow any of the roads in Wyoming. Or maybe it's Idaho I'm thinking that doesn't plow.

Wyoming takes its road plowing very seriously. Those dumbasses up in Montana, on the other hand, seem to be too stupid to figure out that it is possible to move snow off a road.

Ok, Wyoming and Utah plow roads.

Montana doesn't.

Texas doesn't need it done.

It's undecided if Idaho does?