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.
Colorado is home to some of the highest fourteeners or mountain peaks over 14,000. Mt. Elbert is the highest in historic Leadville Colorado just 45 minutes from Keystone. Grays, Torreys, Quandry, Lincoln, and Brass are all easily accessed from Keystone.