Sometime between August 2006 and May 2007, several glaciers in Icy Bay advanced. I first heard about this in late May, when Paul Claus told me. He used to be able to land next to the western side of the Yahtse terminus in his supercub on a small alluvial fan which has since been overrun. He estimated the advance on both sides of the Yahtse terminus to be on the order of 1 to 2 km. The bay has had lots of icebergs from calving all spring.

I was able to over fly the bay on June 13, 2007 and take some pictures. The ceiling was low, and maneuvering for good perspectives was difficult. These photos are not up to Austin Post's standards, but the changes are dramatic.

The waterfalls in Tsaa Fjord were the subject of the 2006 Aeromap calendar.

Historic photos of Yahtse, Guyot and Tsaa can be found in the Austin Post Collection with the following links. Be sure to view the photos from 1987 and 1990 to see how much Yahtse has advanced recently.

http://gdftp.gi.alaska.edu/CGI-Exe/ImageFolio31/imageFolio.cgi?search=yahtse&cat=&x=7&y=19&bool=and

http://gdftp.gi.alaska.edu/CGI-Exe/ImageFolio31/imageFolio.cgi?search=guyot&cat=&x=9&y=4&bool=and

http://gdftp.gi.alaska.edu/CGI-Exe/ImageFolio31/imageFolio.cgi?search=tsaa&cat=&x=0&y=0&bool=and

A pair of Landsat images, one from 07/12/1993 and one from 0/8/31/2000 can be seen here. Between these two dates, the Yahtse terminus advanced about 1.5 km (0.8 miles).

More pictures from later in the summer of 2007 can be seen here.

UPDATE: In May 2008, I flew over the bay and observed Tsaa to be advanced again. It may just be a seasonal varitation in the terminus position, but a dramatic one. Some photos from May 2008 can be seen here.