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On this day in Lewis & Clark history...

The Expedition continues to wait for spring at their winter camp on the Wood River. Lewis observes the weather, the return of the Great blue heron, and notices that the sugar maple sap is running.

From the journals...

the fist appearance of the blue crain, sugar trees run

Meriwether Lewis

Great blue heron, Ardea herodias

Large Heron standing in a marsh

Photo: March 30, 2012 at Ridgefield NWR.