MINNEAPOLIS (November 13, 2012)--Not a single voter cast a ballot in one Minneapolis precinct on Election Day and that’s because the only species living in Ward 10, Precinct 3B, have fins.

A newly redistricted precinct map shows 3B is located entirely in the eastern half of Lake Calhoun, the biggest lake in Minneapolis.

City Clerk Casey Carl said the watery precinct is the "unintentional result of a programming error" made in drawing new ward boundary lines.

Charter Commission chairman Barry Clegg said the mapping software couldn't draw a line around the edge of the lake without putting a census block in the wrong ward.

Clegg said it was supposed to be cleaned up for the final map, but it never was.