Prosser Balloon Rally 2024. Balloon pilots from all over the northwestern united states will join in prosser, washington to participate in the great prosser balloon rally.  — the great prosser balloon rally, which is back for its 35th year, draws pilots from all over the northwestern united states meaning you will see a diversity of.


Prosser Balloon Rally 2024

Watch the hot air balloons.  — prosser — the great prosser balloon rally is back for its 35th annual event, with hot air balloons set to launch from the port of benton’s prosser airport.

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