I spent my summers at my grandparents’ cabin in Estes Park, literally next door to Rocky Mountain National Park. We had a view of Longs Peak across the valley and the giant rock beaver who, my granddad told me, was forever climbing toward the summit of the mountain. We awoke to mule deer peering in the windows and hummingbirds buzzing around the red-trimmed feeders; spent the days chasing chipmunks across the boulders of Deer Mountain and the nights listening to coyotes howling in the dark.