Maria Rivera, 22, missing near Garden of the Gods

I lost my sister, Maria Rivera, 22, yesterday around 6:15pm. She was last seen near the Garden of the Gods Visitor Center parking lot, walking toward Colorado Avenue. She's about 5'5" tall, olive skin, shoulder-length black hair, and brown eyes. She has a crescent tattoo on the inside of her left wrist and wears a silver compass pendant necklace. At the time she was wearing a red hoodie, gray denim jacket tied around her waist, black leggings, and white sneakers, carrying a green floral backpack. I'm really worried—she's usually careful and reachable by phone, but might ignore calls if distressed. If you see her, please contact me immediately; we just want to know she's safe, and she often goes by the nickname Mia with family.