January 22, 2016 - Added two new mbtile files

Post date: Jan 22, 2016 9:38:46 PM

Added mbtile files for USGS Aerial photography from October 3, 1942 and USGS orthoimagery from October 12, 2010. On the USGS "Earth Explorer" page, for some reason the imagery is dated April 2009. However it is the exact same imagery as what is in Google Earth's historical selection for 2010. Cross-referencing with the USGS water level gauge historical values, the level matches closer with the 2010 date, so I will stick with that as the label. I also added an entry on the "Available Imagery" page for the aerial photography, and edited the existing entry for the orthoimagery.