County boundaries superimposed on Google Maps with driving directions
This is an experimental feature. As you pan around the United States and Canada, all of the county lines for the area in view will be drawn. Clicking the Analyze button will create a report for your route, showing distance, duration, and counties that the route passes through.
Drawing the boundaries for too many counties will use up your computer's processing power, memory, and bandwidth. Move around slowly and keep your map zoomed in until you become familiar with how well your browser will cope with the demands of this page.
The page can be flaky about adding "waypoints" to your route. You may have better luck if you add waypoints as soon as the page loads and before the county lines are drawn. It may also be easier to enter arbitrary waypoint locations below and move them after the map loads. Google limits the number of driving direction requests we can make each day. This feature may be unavailable at times if it gets too popular.
Send bug reports and feature requests to firstname.lastname@example.org.