Deanna, there are three near that area, but I don't specifically recall one in the mushroom area.
One is before you get there on a ledge right near where you build the tractor trailer,
the one you get when you destroy the three hatches and
the one right after the mushrooms in the chasm area that you have to use Vader, or the Emperor to build a bridge. That last one was tricky, you build half the bridge, walk out on it ad buils the other half.
Hope that helps.