Missing 72-year-old hiker found alive days after frightening 100-foot fall left her badly injured

A multiday camping trip in Northern California sparked a desperate search after a 72-year-old woman failed to return as expected.

Mary Beth Granbery, a Mount Shasta resident, departed for a multi-day camping trip on Sept.

28 and was expected to return by Oct.

1, according to a press release from Siskiyou County Sheriff's Office.

When Granbery did not show up for work the following day, concerned family members reported her missing, the release said.

GRIZZLY BEAR MAULS HIKER, DRAGS HIM DOZENS OF FEET ON GLACIER NATIONAL PARK TRAIL A key development came on Oct.

3, when family members located Granbery's camper van at the Cabin Creek Trailhead in neighboring Shasta County, according to the sheriff’s office.

The Siskiyou and Shasta County Sheriff's Offices then joined forces — with deputies and search and rescue teams working together to locate the missing hiker.

Fox News Digital reached out to the Siskiyou County Sheriff's Office and Shasta County Sheriff's Office for comment and further details.

On Oct.

4, ground crews located Granbery near Cabin Creek, the Siskiyou County Sheriff's Office said.

Though she was alive and conscious, she'd suffered serious injuries after falling down a steep embankment, according to the sheriff's office.

CLICK HERE TO SIGN UP FOR OUR LIFESTYLE NEWSLETTER Those injuries apparently included a severe knee injury.

She also showed signs of exposure when rescuers reached her — and she was disoriented and "nonverbal," according to reports.