Icefalls continue to form at Starved Rock and Matthiessen State Parks! Freezing will slow down tomorrow with warmer temperatures but looking ahead to the weekend, temperatures are expected to drop significantly. This will result in canyon waterfalls freezing at a much faster rate! Either way, now is a great time to explore, hike, and experience winter! ❄️ For updates on icefalls go to our website park dashboard for an update on the status of each canyon.