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Historic Photo Hunt

Looking southeast. Note Douglas fir type on northeast and grassland on southeast slopes.Images from the Wieslander Vegetation Type Mapping Collection are courtesy of the Marian Koshland Bioscience and Natural Resources Library, University of California, Berkeley.

Coming soon!

Cal-Adapt's "Historic Photo Hunt" will give users an opportunity to help scientists monitor changes in the landscape over time. 

Much like a geocache, we will provide coordinates that may be used to navigate to the recorded location of a California landscape photo taken by USGS in the 1920’s and 30’s.  These recorded locations are close, but not exact as they were drawn on a topo map by the original photographers in the field.  The challenge will be to find the exact place that the original photographer was standing in order to reproduce the same shot today. 

The photos that we will be hosting for this activity are a part of the Wieslander Vegetation Type Mapping (VTM) Project.  The data provide a snapshot of the State’s vegetation in the early 20th century, making the collection an invaluable resource for examining changes in land cover and use, or habitat restoration.

You can view an excellent example of this activity in Noah Wasserman’s 100 Years in Tuolumne site.  As a part of his Master’s thesis research at San Francisco State, Noah replicated over 80 historic photos in and around Yosemite National Park.


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