Historical Marker

An Invasive Fish

Historical marker location:
3001 Connecticut Ave NW, Smithsonian National Zoo, District of Columbia
( Marker can be reached from Olmsted Walk, 0.1 miles east of Connecticut Avenue Northwest, on the right when traveling east.)

Washington, D.C. is 90 square miles, surrounded by reality.
Andrew Johnson in The Public Papers of the Presidents, 1865
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