text: ==kaynakça==*http//wwwslackpackercom/glacialhtml*http//wwwkmorainecom/interesthtm*http//wdfwwagov/fish/warmwater/library/fpt0511pdf*http//zeitcamcom/showcamphpcam=fishlake&currentimage=1==dış bağlantılar==* geology of ice age national scientific reserve of wisconsin nps scientific monograph no