All Over The Map: LiDAR tech reveals ghostly causeway, phantom lake on Eastside

The technology known as LiDAR – Light Detection and Ranging, a laser-driven means of making precise measurements over large areas – has been helping scientists understand geology and natural history for many years. It turns out that LiDAR is also pretty useful for plumbing the depths of recent human history too, including a phantom lake on the Eastside.

The Resident Historian is a twice-weekly podcast from KIRO Newsradio's Feliks Banel. Each episode includes either Feliks's Wednesday history feature from Seattle's Morning News, or the weekly Friday morning installment of the history and geography series All Over The Map.