A cloudy crust atop standing water.

A volunteer naturalist told me that the crust consists largely of glandular secretions from the beavers who built the dam that stagnates the water.

 

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In the Marie J. Desonier State Nature Preserve in Carthage Township, Athens County, Ohio, on July 12th, 2010, a beaver pond along the Oak Ridge Trail.

 

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Library of Congress classification ideas:

GB1815 Ponds—United States—Pictorial works.

QH87.3 Wetlands—United States—Pictorial works.

QH76.5.O3 Natural areas—Ohio—Pictorial works.

SD143 Forests and forestry—United States—Pictorial works.

F499.C25 Carthage (Ohio : Township)—Pictorial works.

F497.A8 Athens County (Ohio)—Pictorial works.

 

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Art & Architecture Thesaurus term:

• temperate deciduous forests

Done