These golden-leaved fall cottonwood trees -- and their fallen leaves -- were near the Bosque del Apache refuge in central New Mexico.

• Canon 10D,1D Mk. II, or 1D3, Sigma 12-24 mm, Canon 17-40, Canon 24-105, Canon 70-200 f4 IS, and Canon 100 macro (2004, 2005, 2007)