search for: gissearch

...es/rivers and/or basic topographical lines. My preference obviously includes getting data sets for those things (county border, lakes/rivers, topography) in a format that I can parse with php to draw them with gd. My county does have some GIS data available: http://www.shastagis.co.shasta.ca.us/gissearch/search_new.aspx I don't have a clue how to get that data into format useful for drawing with gd via php. Anyone have experience with this? Can anyone recommend a (preferably free) Linux GIS program that works on CentOS that could potentially convert data files into format useful for drawin...