Today, it is not unusual to encounter professional photographers and novices alike trying to retrace (Ansel Adam’s) path (at Yosemite). They wait for the perfect minute of moonrise over Half Dome or a shadow on a fallen tree in Siesta Lake. They remember his photo of a juniper tree they saw in a museum, on a coffee cup or a monthly calendar. Ansel Adams’s work, in some ways, is the best unpaid advertising a national park could get.

(New York Times: What Adams Saw Through His Lens)