<bdi><a href="https://en.wikipedia.org/wiki/en:Albert_Bierstadt" class="extiw" title="w:en:Albert Bierstadt"><span title="American painter">Albert Bierstadt</span></a>
</bdi>
circa 1876-1877
1. <a rel="nofollow" class="external text" href="http://www.artnet.com/magazineus/reviews/lawrence/lawrence11-22-05_detail.asp?picnum=8">Artnet.com</a><br>2. <a href="https://en.wikipedia.org/wiki/en:Bridgeman_Art_Library" class="extiw" title="w:en:Bridgeman Art Library"><span title="library">Bridgeman Art Library</span></a>:  Object <a rel="nofollow" class="external text" href="https://www.bridgemanimages.co.uk/en/asset/443147">443147</a><br>3. <a rel="nofollow" class="external text" href="https://www.nga.gov/collection/art-object-page.166428.html">National Gallery of Art, Washington, D. C., online collection</a>