Current Challenge: Glaciers

Welcome to Find-A-Feature Photo Challenge! Periodically, we will showcase a new geological or ecological feature and challenge you to find something similar in your neighborhood. Science is everywhere - take a look around! Show us what you see! Tag us on Instagram or Twitter @USGS_YES or send your pic to

Glaciers are large masses of ice on land that form in places where more snow accumulates in a year than melts. As they slowly move across the land, they erode large amounts of rock and leave distinct depositional features behind. Glaciers are generally classified as either continental glaciers or alpine (mountain) glaciers, which are smaller. Today, continental glaciers only exist on the continents of Greenland and Antarctica. 

The USGS has been studying glaciers for over 100 years. Learn more glacier terminology here, see amazing historical and recent photographs of Glacier National Park in Montana here, and check out our lesson plan, 'Evaluating Glacier and Landscape Change.'

Look closely at the snow or other every day items around you. Can you find something that looks like a glacier? Stay tuned for additional Find-A-Feature challenges about erosional and depositional glacial features.




We'll be watching Instagram and Twitter for some great #findafeature examples and may share them here with the first name or initials of the contributor, and a general location. If you tag us with @USGS_YES you are giving us permission to use your image. Please see the USGS social media sharing policy at: Or, you can e-mail photos to us at and we may share them on this page or on social media. Thanks for participating and for seeing science all around you!