http://www.atlakeunionpark.org/category/type/history-info/natural-history The taxonomy view with a depth of 0. en http://www.atlakeunionpark.org/about-lake/history-lake/natural-history <h2>Natural History and Geology</h2> <p> Picture five Space Needles stacked on top of each other. This was the size of the Vashon Glacier, a 3,000-foot tall ice sheet that gouged out Lake Union and Lake Washington and sculpted Puget Sound during its retreat over 13,000 years ago.</p> <p><a href="http://www.atlakeunionpark.org/about-lake/history-lake/natural-history">read more</a></p> Learn Natural History Thu, 24 Apr 2008 18:26:44 -0500 rosalie 65 at http://www.atlakeunionpark.org