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Pictured Rocks National LakeshoreThis bridge spanning the Beaver Creek was built by a volunteer group from Madonna University.
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Pictured Rocks National Lakeshore
Amphibians
A garter snake meanders through long grass.
NPS photo by Gregg Bruff
Garter snake

As would be expected at this northern latitude, herpetofauna are not numerous. Only 5 reptilian and 11 amphibian species are known to exist within the Lakeshore.

Among species present are American toad (Bufo americanus), spotted salamander (Ambystoma maculatum), spring peeper (Hyla crucifer), leopard frog (Rana pipiens), painted turtle (Chrysemys picta), snapping turtle (Chelydra serpentina), eastern garter snake (Thamnophis sirtalis), and northern redbelly snake (Storeria occipitomaculata).
The purple flower of spotted knapweed, a non-native invasive species, is shown with Pitcher's thistle, an endangered species.  

Did You Know?
Pictured Rocks National Lakeshore is home to three arctic disjuncts, plants whose normal range is far to the north. Arctic crowberry, Pitcher's thistle, and thimbleberry thrive because of the cool and moist microclimates caused by Lake Superior.
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Last Updated: December 04, 2006 at 10:23 EST