Winding Mariposa Lily - Calochortus flexuosus

 I was taken aback to see this delicate flower from the Lily Family (Liliaceae) gracing a dry, gravelly slope above a road cut. This is winding mariposa lily (Calochortus flexuosus), found in the southwestern U.S. Flower petals range from white to pink and have a band of yellow low on them.

Although I only found a few of these flowers scattered, they can grow in large numbers, as seen on the Southwest Colorado wildflowers page.