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.
Trophy Fish found in Keystone Lake: Largemouth Bass, Smallmouth Bass, Crappie, Sunfish, Striped Bass, White Bass, Channel Catfish, Walleye, Saugeye. The land around Keystone Lake is full of: white-tailed deer, raccoon, bobcat, coyote, beaver, squirrel, cottontail rabbit, bobwhite quail, mourning dove, ducks and geese.