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Echelon can refer to:

• A matrix in echelon form in mathematics.
• The echelon formation in migratory bird flight, aerial combat, tank warfare, naval warfare, and medieval warfare.
• ECHELON is an intelligence gathering network rumored run by UKUSA.
• Echelon is a game console warez organization.
• Echelon is a flight simulator series developed by MADIA.
• Echelon is a vintage computer game which could employ acoustic steering commands.
• Echelon is a card game by Echelon Games.
• Echelon in geology refers to a set of short linear features that overlap or are staggered in a line that runs obliquely to the strike of the individual features. Echelon faults are an example of this.
• Riding in an echelon is a bicycle racing technique to make maximum use of other riders' slipstreams in a crosswind.
• Echelon is the street team of the band 30 Seconds to Mars.

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