Yellowstone National Park, Wyoming – A little Jack Russell Terrier named Luna has been fighting for survival in the wilderness of Yellowstone National Park for the last 30 days, but time is running out for the dog.

The little female dog escaped from her family's cabin in the park on September 10, according to People.

Her family left Luna there and put a "Do Not Disturb" sign on the door while they visited the Norris Geyser Basin.

Despite the sign, cleaning staff entered the cabin, and Luna dashed out.

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Employees spent about two hours trying to catch the frightened pup before her owners returned. The chase, however, drove Luna even deeper into the dense woods.

Katie Boucher, chair of the animal‑welfare group Norris Ark Training and Recovery Center, explained the issue: "It scared her really badly. It's the worst possible thing a person can do when an animal escapes, because they all revert to a feral prey state at that point. They are just seeking safety."

Finding a 20-pound dog in the great wide wilderness is no easy task. After a week of looking, her family was left after someone said that Luna was probably dead.

Just two days after their departure, Luna was spotted.

Despite the dangerous terrain, Boucher and her team refuse to give up: "The family should have never been told that she could not survive. They survive. They’re not in great shape when we get them back, but they do survive."

Luna was spotted again on September 20 and has been seen repeatedly since then. In a photo taken a little over a week ago, she was still wearing her collar.

Luna's ability to survive may be thanks to her life before she was adopted, as she was a stray.

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"She has street skills. She knows how to survive," Boucher said.

Luckily, rescuers think they know where Luna sleeps, and they're trying to use a special live‑capture trap. Time, however, is running out: It's already snowing in the national park.

If the little dog isn't caught within the next week, the search will have to be paused until spring.

Rescuers ask anyone who sees Luna not to call her name, chase, or feed her. Instead, if anyone spots her, they should snap a pic and send it to the National Park Service.