--------------------------------------------------------------- The following message was sent to you via AVO Web Email System: --------------------------------------------------------------- Name: Terry Katzer Email Address: terrylkatzer@gmail.com Subject: Semisopochnoi Island in the Aleutian chain Message: Hi All, On the west side of Semisopochnoi at 51 56 43 N and 179 29 21 E there is a north- trending feature, 1135 ft x 485 ft, that resembles a lake, but probably isn't?? It appears to flow to the west into an earthen pipe?? An ancient mud flow? What is this feature? I'm a hydrogeologist and spent sometime on Amchitka for the USGS in 1967 and 68. ---------------------------------------------------------------- REMOTE IP ADDRESS: 71.92.80.232 USER AGENT/BROWSER: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36 REFERRING PAGE: https://avo.alaska.edu/contact.php