The girl eventually admitted that she was the mother of the child and had hidden her pregnancy from her family.
The baby was not injured.
Colorado Springs police decided the case could best be handled in the juvenile system.
According to 9NEWS Reporter Meagan Fitzgerald, the mom had the baby on Tuesday and went to take the trash out on Wednesday with the baby. At that point, she started screaming to get her mother's attention, claiming she had found the baby next to the Dumpster.
Meagan says the mom did not want to tell her mom that she had a baby and thought she could just say she found it.
The baby was placed in protective custody and looked to be 6- to 12-hours-old.
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