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.
Plan an escape from your busy life in the heart of the Rocky Mountains: Summit County, Colorado. For 25 years, families and groups of friends have booked memorable vacations in Summit Resort Group condos and private homes located in Keystone, Dillon, Frisco and Silverthorne.