Motorland Aragon, which made its MotoGP debut as a substitute circuit last season, will remain on the calendar for the next six years.
The Spanish circuit was already assured of a 2011 date, but Dorna Sports, MotorLand Aragón and the Government of Aragón today (Tuesday) signed a new agreement until at least 2016.
Aragon hosted round 13 of last year's championship after the cancellation of the planned Hungarian event. The race saw Casey Stoner take victory ahead of Dani Pedrosa and Nicky Hayden.
At the end of the season Aragon became the first circuit in history to win the IRTA 'Best Grand Prix' award in its first year, in recognition for being the best organised event on the calendar.
Last year's Aragon event was attended by 116,000 people across all three days, with 70,000 present for race day.
Aragon, one of four Spanish rounds on the MotoGP calendar, will also host its first World Superbike round this season. Aragon has a three-year deal with WSBK.