Foothills, montane. Shrublands, woodlands. Spring.
Narraguinnep Natural Area, May 19, 2006.

Such orange lichen are common on Gambel Oaks.

Foothills, montane. Shrublands, woodlands. Spring.
Bear Creek Trail, October 4, 2007.

Fall colors are blends of browns, reds, yellows, and greens.  After a long summer, only dots of chlorophyll remain on the red leaf below while the chlorophyll retreats along the leaf veins in the bottom photo.

Foothills, montane. Shrublands, woodlands. Spring.
Between Ridgway and Ouray, September 16, 2001.

Shadowy oaks tumble in shades of red below the high San Juans just south of Ridgway.