From the West Coast Imaging blog:

Price Increase Coming for Ansel Adams Yosemite Special Edition Prints Did you know you can buy a real silver-gelatin print made from an original Ansel Adams Negative for just $175? For decades, it has been possible to buy a print just like Ansel would have made it, thanks to his Yosemite Special Edition Print collection. But if you want one at this price, you should hurry–on November 15, 2007, the prints will increase to $225 each.

From the Ansel Adams Gallery – Rich Seiling [West Coast Imaging blog]

There are some links to the individual photographs in the original story, and they include some very interesting background information about how, when, and where the photographs were made.