Is Presumpscot River Rotating Ice Disk happening right now?
As of today, out of season, returns ~January. Earth Exhibit tracks the live conditions and flags it the moment it is on.
Large circular ice disks sometimes form on slow, meandering sections of the Presumpscot River in winter when an eddy and near-freezing temperatures create steady rotation.
The disk is a physical hydrodynamic phenomenon rather than biological, and appearances are intermittent and weather dependent.
Where to see it
A taste of where to see it. The full map, exact coordinates and the best timing for each spot live in the app.
| Viewing spots |
|---|
| Saccarappa Falls / Presumpscot Riverbank, Westbrook |
| Presumpscot River - Riverwalk Overlook, Westbrook/Portland border |
This is the short version
This page shows a taste. The app has the full list of where to see this, the exact timing, and live conditions for 1,000+ natural phenomena worldwide, so you know the moment one is genuinely worth the trip.