Survey Lodge Located on the grounds of the <a href="http://mallhistory.org/items/show/36">Washington Monument</a>, the Survey Lodge was originally a boiler and steam house for the machinery necessary to power the <a href="http://mallhistory.org/items/show/502">Washington Monument's elevator</a>. It was constructed of leftover marble and granite from the <a href="http://mallhistory.org/items/show/281">construction of the Washington Monument</a>. Today, the site is a National Park Service Ranger Station. <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=39&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=William+Bradley">William Bradley</a> 1886 <a href="/items/browse?advanced%5B0%5D%5Belement_id%5D=38&advanced%5B0%5D%5Btype%5D=is+exactly&advanced%5B0%5D%5Bterms%5D=1860-1889">1860-1889</a>