In 1983, scientists poured dye into Wyoming’s Popo Agie River before it vanished underground; two hours later, it resurfaced about 3,500 feet away with more water than entered
In Sinks Canyon State Park in west-central Wyoming, the Middle Popo Agie River does something few rivers do: it disappears underground. At a point known as the Sinks, the river's entire flow vanishes into a cave system instead of continuing along an open channel. Downstream, the water reemerges at a…
The Times of India ·