How do you find out the date of acquisition for satellite images used by Google Maps? It looks to me like they use a mix of several images taken at several different times. How often do they update? The reason I ask is that it looks like the Alpine Lake fire (2012 in the Wind Rivers) now shows up on the Google Maps. Hard to tell because the images are early season and there still is a lot of snow. It is a bit disappointing that some images of the highest areas are nothing but solid snow.