The woman's body was found last Tuesday just before noon near Highway 138 and Crestline Road.
Deputies found her about 75 feet down a steep embankment, according to authorities. Investigators said her injuries appeared to be consistent with a fall.
The San Bernardino County Sheriff-Coroner Division says she's between 48 and 60 years old. She's about 5 foot 1 and weighs 115 pounds.
She has bleach blonde hair, brown eyes and was last seen wearing a blue sweatshirt, blue pants and white and black New Balance shoes.
Anyone with information is asked to contact the San Bernardino County Sheriff-Coroner Division at 909-387-2978 and reference case number 702507482.
If you'd like to remain anonymous, call We-Tip at 1-800-78-CRIME (27463) or visit wetip.com.