snowbelt

[snoh-belt]

noun

a region of annual or heavy snowfall.
(initial capital letter) Also Snow Belt. Also called Frostbelt. the northern parts of the U.S., especially the Midwest and the Northeast, that are subject to considerable snowfall.

Origin of snowbelt

First recorded in 1870–75; snow + belt

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

See the clouds rolling over and over on the top of the Rockies—above the snowbelt!
The Red River Half-Breed
Gustave Aimard