An interesting bit of naivete from Rob Rhinehart here:<p><i>Most, if not all, counties use GIS (geographic information systems) to maintain this data</i><p>Most people have no idea how appallingly corrupt, backward, wrong, inaccurate, inefficient, unjust, etc. etc. record keeping and government in general can be at the county level in some places. For the purpose of brevity let's put it this way: some counties maintain a poor paper trail, deliberately. Those counties also tend to be poor, so you might just assume they cannot afford better systems, but sometimes there is a bit more than that going on.<p>I actually think it would interesting to know how many counties make use of GIS.