As we mentioned recently with the historic maps from North Carolina, the “image overlay” feature in Google Earth is quite powerful. If you’ve never created one before, Kerry Leith from Stress-driven has written a simple step-by-step walkthrough to help get you started.
It’s really as simple as this:
Kerry goes into a bit more detail in his blog entry, where he walks through the process of taking a useful map from G.J. Hearn and overlays it onto Google Earth.
Good work, Kerry!