How old do you think the mountains in Grand Teton National Park are? Without looking it up, let us know your best guess in the comments! ⁠ •⁠ •⁠ 📷 by @rob.phillips.photography⁠ •⁠ •⁠ Remember to use #nationalparkspartnership on your best national park pictures for your chance to be featured.⁠ •⁠ •⁠ #TetonRange #TetonMountainRange #TetonMountains #Wyoming #WyomingWilderness #WyomingParks #WyomingNationalParks #NatureLovers #Nature #NaturePhotography #Landscape #LandscapePhotography #Adventure #Explore #Outdoors #OutdoorAdventure #WildernessAdventure #Camping #Hiking #Backpacking #RockClimbing #BreathtakingViews #NationalParkPhotography