http://ilochhead.maps.arcgis.com/apps/webappviewer/index.html?id=4dfee01903374b1e9bbde1ce0421f787

http://www.sfu.ca/geog/geog455_1151/Play_Deserts/discussion.html

[aesop_image imgwidth=”100%” img=”https://blogs.ubc.ca/2017mappingtheinvisible/files/2017/05/Vancouver-Aerial-View-1898_Vancouver-Archives.jpg” credit=”From City of Vancouver Archives” align=”center” lightbox=”on” caption=”Vancouver Aerial View, 1898.” captionposition=”left” revealfx=”fromleft”]