A 28-year-old Billings woman died after crashing into a canal Saturday night near Toston according to the Billings Gazette.  An uninjured 6-year-old child was rescued from the vehicle, which was completely submerged in the water.  The single-vehicle crash occurred at 10:16 p.m. as the Chevy Trailblazer sped away from the Toston Dam Campground and failed to negotiate a curve, MHP reported.  The canal is located on Toston Dam Road near Johnson Loop.