Explanation (what is "Wisconsin Episode"?) (opens in a NEW WINDOW, so "reload" this page to resume the animation)
This page is http://ngmdb.usgs.gov/ecill/lanimS.html
Images created with EarthVision software
Animation software -- GifBuilder (Macintosh), by Yves Piguet, piguet@ia.epfl.ch
Page maintained by Dave Soller (drsoller@usgs.gov)
last update: Mar. 13, 1999
