How plunge pools form
Glacier
retreats
as it melts
Canyon created by glacier
Boulders and water hammer limestone
Round Lake
Green Lake
Glacier
retreats
as it melts
Canyon created by glacier
Boulders and water hammer limestone
Round Lake
Green Lake
Glacier retreats
as it melts
Canyon created by glacier
Boulders and water hammer limestone
Round
Lake
Green
Lake
Source: Green Lakes State Park Peter Allen | pallen@syracuse.com