At around 3 a.m., the woman drove through a barricade while driving down Spring Cypress near Telge Road.
The Toyota 4-Runner landed in the woods.
It took rescuers several minutes to cut her out of the crashed car.
A LifeFlight helicopter took the driver to Hermann Hospital, where she is expected to be OK.
Deputies found a GPS application open on her phone. They believe she may have been lost trying to use it.
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