gis data


GIS Learning

Christmas Map: A World of good wishes at ChristmastimeA World of good wishes at Christmastime / General Drafting Co., Inc., 1950. Click on image for larger versions of this Christmas map.

Christmas Maps and GIS

The biggest mapping fun at Christmas time is NORAD’s Santa tracking.  The tracking started back in 1955 when a Sears department store misprinted the number children could call to get updates on Santa’s whereabouts.  The number instead went through to the Colorado Springs’ Continental Air Defense Command (CONAD) Center.  The then Director […]

Maps and Cartography

New Online Map Allows the Detailed Scrutinizing of U.S. Households

New Online Map Allows the Detailed Scrutinizing of U.S. Households

Demographic trends in the U.S. have always been a tradition and a wealth of information. After all, the United States government conducts an official census of every household and every person living within its borders every ten years. That census is not only mandated by the U.S. Constitution but the […]

GIS Data

California Supreme Court Rules that GIS Data are Public Record

After a lengthy battle in the court system, California’s Supreme Court has finally ruled in favor of allowing public access to the government’s GIS data in Orange County. Back in 2007, the Sierra Club sued the county for the right to use its GIS data for environmental mapping projects. Orange County resisted, however, claiming that the digital maps did not fall under the Public Records Act.