If you were asked to associate waterfalls with a season, you’d probably pick summer. And it makes sense. Waterfalls conjure imagery of fierce cascades plummeting down steep rock faces into natural, jungle-ringed pools.
But in locales like Montana, where there are waterfalls aplenty but also four distinct seasons each year, something special happens when the temperature drops: those cascades become giant icicles, freezing in both space and time. While Montana may not be the first state that comes to mind if you’re used to tropical waterfalls — nor is winter usually the season you think of visiting — once you’ve seen the state’s formidable icefalls, you’ll never forget the image. Here are six of the most striking frozen waterfalls in Montana to visit this winter.