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.
5 Responses to â5 Things NOT to do in Keystone, Coloradoâ. 1  Ayngelina. All I was hearing on Twitter was about the issues people were having with the altitude, too bad itâs not like Peru and they could have given everyone coca leaves. 2  Jame E. Coleman. Wow itâs a beautiful placeâ¦ Thanks for posting here. 3  Natalie T. Great shots!