I hope everyone has the Library of Congress Flickr photostream bookmarked somewhere; it is a real treasure chest. In Flickr, everyone can help identify, tag, and otherwise enrich the body of knowledge about each image. Back at the LOC website, the uncompressed and un-commented images are preserved. Seems like an effective division of labor and attention.

The 1930s-40s in Color collection will give you an idea of while Kodachrome’s end is a sad thing. Unfortunately, the notes added to some of the images are, well, less than scholarly.

This image of the lovely Sangre de Cristo Mountains is worth the visit: