botanical garden - a facility where trees and shrubs are cultivated for exhibition. arboretum. facility, installation - a building or place that provides a particular service or is used for a particular industry; the assembly plant is an enormous facility.
Keystone, CO Weather. The average temperature of Keystone is 35.80Â°F, which is much lower than the Colorado average temperature of 46.26Â°F and is much lower than the national average temperature of 54.45Â°F. Historical Weather.
Keystone is situated in Summit County. The little town of Dillon is about 6 miles to the west and Silverthorne is another mile or so further along Highway 6. The town of Frisco Colorado is about 12 miles from Keystone Resort. Other Ski Resorts Nearby Youâre in Summit County, Colorado, which is full of ski hills. Arapahoe Basin is the closest.