Toy Story Mania is set to close after this Sunday for some routine work and will be closed for more than a month. I was a bit surprised to hear this because it is a very popular ride and I wouldn't think they'd want to close it that long (especially after Toy Story 3 recently did so well in the theaters). I rarely ever see it with less than a 30 minute wait. I'm not sure what kind of work they're doing on the ride, just that there will be no new games or features added. (I wish they were adding Fastpass machines for it like they have at Disney World. I don't get to ride this much because of the long wait.)
The other ride that will be closing is no surprise because it is that time of year where Disneyland begins getting ready for Halloween! The Haunted Mansion will be closing so it can be converted into the Nightmare Before Christmas version of the ride, Haunted Mansion Holiday. It should open on Sept. 17th.
Note: Star Tours is also closed right now as it is transformed into the new Star Tours: The Adventures Continue set to open in 2011.