Officers say the little girl fell in the mud after attempting to grab a turtle at the collapsed spillway in Cherokee Lake Park.
Officers say they don't know the girl's exact age, but say she wasn't older than 11.
"I think the city should be responsible and put up signs letting people know they'll sink in it.," says Thomasville resident Hank Rogers.
Officers say the little girl was unharmed and they were able to rescue her out of the mud with the help of several other agencies.
Officers say they urge those who are using the park to be careful and take precautions until the spillway is fixed.