DA 35mm Macro Lens Photos at 9,000 ft

I had not shot with the new DA 35mm f/2.8 Macro lens, since coming back from Mexico in early May. I went out to Silver Plume and Georgetown, Colorado this morning and only brought this lens with me. All images were shot at ISO 200 RAW with a K20D and converted by ACR/CS3 into JPEGs for posting here.