An 18-year-old woman was sent to a Winnipeg hospital after an ATV crash on the Keeseekoowenin First Nation.
The crash happened early Saturday morning, just south of Riding Mountain National Park.
RCMP said the 17-year-old man driving the off-road vehicle lost control and crashed near the casino.
The driver was not hurt, but his 18-year-old female passenger was unconscious when emergency crews arrived.
RCMP said alcohol was likely a factor in the crash and the 17-year-old man will face charges under the Off Road Vehicle Act.