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.
Six varieties of Keystone have been produced, as well as the original: 1  Keystone, introduced 1989, found with a gold can, red label, later changed to Keystone Premium. 2  Keystone Premium, found with a red, white and blue can. 3  Keystone Light, introduced 1989, found with a blue label. Keystone Dry, introduced 1991, found with a black can, red label. 2  Keystone Ice, introduced 1994, ice brewed ale, found with a black label. 3  Keystone Amber Light, introduced 1994, found with a gold can with a diamond Amber Light badge. 4  Keystone V9, Puerto Rico only.