Allan over at Mission Mission and Telstar Logistics are investigating hidden ponds and creeks of the Mission. Thankfully the all-powerful David Rumsey has given us a gift of kick-ass digitized historic maps, and it gets even better as he has taken full advantage of Google Earth. Combined with the old Coast Survey maps of San Francisco, it makes for an excellent creek detector.
Last month I asked David to add my favorite map of the Mission to his Google Earth collection, the 1859 US Coast Survey Map of San Francisco (which actually shows the state of the city in 1857). While there are several other maps available in Google Earth (specifically the 1869 Coast Survey and the 1915 map), they all show the street grid we know and love today, or like the 1853 Coast Survey, don’t go further south than the Mission Dolores itself. The glorious 1859…
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