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== Ecology ==
[[File:Map_Purelake.png |thumb|left|Map of the Purelake by [[User: Otto didact]]]]▼
=== Geography ===
▲[[File:Map_Purelake.png |thumb|User: Otto didact]]
The Purelake is a large lake that has an average depth of about midcalf, with its greatest depth being around six feet.{{book ref|twok|i|1}} Its surface was typically calm and crystal clear, despite the tides. It was hundreds of miles wide. The lake bottom had small ridges and sharp ledges of rock.
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