From: oen on 21 Jun 2010 17:44 On Jun 21, 11:31 pm, dlzc <dl...(a)cox.net> wrote: > On Jun 21, 10:27 am, oen <ynes9...(a)techemail.com> wrote: > ... > > > you give me a triangular underground cavity, > > i cant expect a circular sink hole, no matter what > > http://pubs.usgs.gov/ha/ha730/ch_d/gif/D108.GIF > ... trilobar. > > http://albertawilderness.ca/issues/wildlands/mcclelland-lake/img/2006... > ... three in a row. > > You are a black hole. > > David A. Smith as said, invalid those holes are old, still circular, and can be anything else give me a new triangular sink hole and i will reconsider until then, i am the boss good bye |