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Message: <blockquote data-quote="solitaryVSong" data-source="post: 1886345" data-attributes="member: 77930">For all you geology lovers I just stumbled upon this painting of my neighborhood from 145 years ago: <a href="http://www.brooklynmuseum.org/opencollection/objects/2850/Rockdale_Near_Manayunk_PA" target="_blank">http://www.brooklynmuseum.org/opencollection/objects/2850/Rockdale_Near_Manayunk_PA</a>. I was reading a book on American watercolor and there it was.I don't immediately recognize the scene but it looks typical of the Wissahickon Creek, just one half mile or so from where I live in the 6th largest metropolitan area in US. It is a very big city, but having streams with formations like this nearby makes it seem much more bucolic. The birds seem to love it too.The Wissahickon is not typical of the geology of this area and has always been puzzling. The latest theory I know of  is that my area is actually part of a foreign terrane, that broke off from some other continent and jammed itself onto the eastern seaboard of the US.End of geology break.<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink    ;)" loading="lazy" data-shortname=";)" /><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink    ;)" loading="lazy" data-shortname=";)" /></blockquote>