Screw Auger Falls, Waterfall in Grafton Township, Maine, US.
Screw Auger Falls is a waterfall on Bear River featuring a main drop followed by a second cascade through a narrow gorge. The water carves through rock formations, creating pools and natural basins as it moves downstream.
Settlers built a sawmill over the falls in the 1850s to harness its power, but the structure was destroyed by fire in the 1860s. After this loss, the location gradually transformed into a destination for visitors rather than industry.
The walking trail features informational displays explaining how settlers once relied on this waterfall to power their mills and industries in the region.
The site is easily accessible from Route 26 with a paved parking lot and offers picnic tables and restrooms for visitors. A short walking trail with clear markers leads to several viewpoints along the gorge.
The water has carved giant potholes and small natural grottoes into the gorge over thousands of years, creating formations that look like mysterious caves. These shapes form where the water flows with particular force and speed over the stone.
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