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Space and Aviation Historic MarkerGO Challenge
The Space and Aviation Historic MarkerGO Challenge contains 2,357 Historic Markers tagged as Air and Space by the Historic Marker Database. How many can you find and activate with your Force for HealthGO App?
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Enable clustering for high density markers
Label each marker
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letters
numbers
Calculate (straight line) distance from first address in
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kilometers
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High Res 11" x 17" Printout
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