There are four design loads in Larimer County. For elevations under 7000 feet the ground snow load is 30 pounds per square foot (psf). 
Elevations from 7001 feet to 7999 feet the ground snow is 40 psf. From 8000 feet to 8999 feet the ground snow is 50 psf. 
For elevations 9000 feet and over the ground snow load is 70 psf. The minimum basic wind speed is 90-180 mph (3 second gust) and exposure "B" will be assumed. (See Larimer County Wind Speed Map ) Frost depth for this region is assumed to be 30 inches minimum.