<html><head><style type="text/css"></style></head><body><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><DIV><SPAN>So in self response, I found the full video on YouTube which shows several more "eruptions."  It also contains a bit of an explanation for my own question of how it works, and maybe gives some insight into the Minnesota phenomena.  In Swedish and English:</SPAN></DIV> <DIV><SPAN></SPAN> </DIV> <DIV><SPAN><A href="http://www.youtube.com/watch?v=k9fVALW_HZo&NR=1">http://www.youtube.com/watch?v=k9fVALW_HZo&NR=1</A></SPAN></DIV> <DIV><SPAN></SPAN> </DIV> <DIV><SPAN>Vattnet rinner ner i ett schakt och vidare i en tunnel som är 17km (!) lång, och vid vårfloden så sugs det ned massvis med luft som tillslut åker tillbaka till öppningen, resultatet..ja videon säger allt. "Gejsern" varierar i storlek men ligger vanligtvis på c:a 60m ://: The water runs down a vertical shaft and then into a 17km long pipeline, in the spring the flood also drags down alot of air, and several times an hour the air shoots back up to the opening, causing a man-made geyser. </SPAN><BR></DIV> <DIV style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, times, serif"><BR> <DIV style="FONT-SIZE: 10pt; FONT-FAMILY: arial, helvetica, sans-serif"><FONT face=Tahoma size=2> <HR SIZE=1> <B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> Jeff Cross <Jeff.Cross@wallawalla.edu><BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> "geysers@lists.wallawalla.edu" <geysers@lists.wallawalla.edu><BR><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Sunday, December 7, 2008 4:18:32 PM<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> [Geysers] Air Geyser in Sweden<BR></FONT><BR>Here is a link to video of what one might call an "air geyser" in Sweden.  It looks very similar to the one circulated on this list 2 years ago from the Minneapolis-St. Paul area, that erupted from the middle of a highway.<BR><BR><A href="http://www.youtube.com/watch?v=iU-ky4_SO0U&feature=related" target=_blank>http://www.youtube.com/watch?v=iU-ky4_SO0U&feature=related</A><BR><BR>The video allows you to comprehend the eruption's size.<BR><BR>Jeff Cross<BR><A href="mailto:crossj@whitman.edu" ymailto="mailto:crossj@whitman.edu">crossj@whitman.edu</A>_______________________________________________<BR>Geysers mailing list<BR><A href="mailto:Geysers@lists.wallawalla.edu" ymailto="mailto:Geysers@lists.wallawalla.edu">Geysers@lists.wallawalla.edu</A><BR><A href="https://lists.wallawalla.edu/mailman/listinfo/geysers" target=_blank>https://lists.wallawalla.edu/mailman/listinfo/geysers</A><BR></DIV></DIV></div><br> </body></html>