CHS Cartographic Collection

52 19th and early 20th century maps of California have been added to the California Historical Society’s new Digital Library. The images represent a sampling of unique or uncommonly held titles ranging geographically from an 1863 map of the copper region of Del Norte County in the north, to a circa 1866 Topographical Map Showing the Locations of the Sutro Tunnel and the Comstock Lode, to a colorful 1913 townsite map of Date City (now called Calipatria) in Imperial County in the south. In between are city, county, mining, real property, water-supply, road, and railroad maps of various localities throughout the state.  Check it out!

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Protected Areas Database of the US

The Protected Areas Database of the United States (PADUS) is the official inventory of public parks and other protected open space. With more than 3 billion acres in 150,000 holdings, the spatial data in PAD-US represents public lands held in trust by thousands of national, State and regional/local governments, as well as non-profit conservation organizations.

It is possible to download data for the entire US or a state from the Data page. Data can be downloaded in Shapefile or Geodatabase format.  A fact sheet can be found here.  To view data in a viewer or download the data click below.

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