In various places on this site there's a interactive "Where's David?" map in the sidebar. This page just shows a larger version along with an explanation.
While I'm travelling around the country and around the globe, I try to keep this map updated with my current position. This is for my friends and family, as well as for people interested in following along with what's happening on our photography workshops and expeditions. The map shows a line connecting the last month's worth of points, and by default is zoomed to around the last week (although due to the way Google Maps works it sometimes gets the zoom level wrong by one step). The most recent point shows up as green.
We're currently (June'13) tuning the integration of a new datafeed, but it's possible there may be some errors in the points while we're sorting this out.