At-Risk: the Bay Area Greenbelt
This is the seventh and most recent edition of the project that got me into cartography starting at Greenbelt Alliance in 1990. It depicts the threat to open space from suburban sprawl. From grease-pencil scrawls on acetate copies of county maps back then, it has evolved into a sophisticated GIS product with an underlying database of every property parcel in nine counties. For full detail click here to go to Greenbelt.org.