Exploring Lake Michigan Sand Dunes : Exploring Lake Michigan Sand Dunes
Lake Michigan’s eastern shoreline contains the largest concentration of fresh water dunes in the world. : Lake Michigan’s eastern shoreline contains the largest concentration of fresh water dunes in the world.
How dune sand was formed : Formed millions of years ago when glaciers covered the land. How dune sand was formed
Dune sand is made up of: : Dune sand is made up of:
How dune sand moved : How dune sand moved
Dunes are created by three actions : Dunes are created by three actions Waves Wind Vegetation
In the late 1800’s Henry Chandler Cowles studies the dunes : In the late 1800’s Henry Chandler Cowles studies the dunes
Beach : Where water meets land Beach
Beach : Beach
Not many things live on the beach : Not many things live on the beach But many things visit the beach Ant lion colony Sea rocket Tiger beetle Sea gull Lady bugs People
Foredune : Where the first dunes are formed Foredune
Open dune area : Open dune area Hognose snake Fowler’s toad Monarch butterfly Monarch butterfly caterpillar on a milkweed plant Pitcher thistle
Through : Eastern bluebird Red fox Low area between the foredune and the backdune Through
Backdune : Trillium Jack in the pulpit Columbine Dutchman’s breeches Backdune
Backdune : Barred owl Raccoon Pileated woodpecker Eastern box turtle Backdune
Dunes are fragile : Dunes are fragile
Development : Development
Exotic species : Exotic species Garlic mustard Baby’s breath
Sand dune mining : Sand dune mining
You can help protect the dunes by: staying on paths, not littering, by leaving plants and wildlife in place : You can help protect the dunes by: staying on paths, not littering, by leaving plants and wildlife in place
Slide 22: www.lakemichigan.org
700 Washington Ave., Suite 150
Grand Haven, MI 49417
616-850-0745 A special thank you to P.J. Hoffmaster State park for use photographs and to park naturalist Elizabeth Tillman for her assistance