Boucher has been tracking sightings of Luna and says the dog is retracing her family's steps from the day before she was lost, sneaking into eateries or lodges they had visited.

Locals and tourists have called Luna's name or chased her, triggering her fight-or-flight response and driving the dog further into the park, Boucher said. The volunteers set a humane trap to lure Luna in using the scent of her family, since using food could attract other wildlife like bears.

Time is running out as winter closes in

This might be the last week Boucher will be able to look for Luna, as weather could potentially limit how long she can stay in the park. Right now, she's sleeping at an RV park for seasonal employees that closes next Monday.

Despite the time crunch, she's confident she's close to returning Luna to her family.

 Her behavior pattern suggests to me that she is looking for her family,  Boucher said.

The search for the small pup has rallied locals and tourists visiting the area. Marie Jaskula, a resident in the area that runs one of the park's general stores, has posted signs at every entrance to the park so visitors can look out for Luna too.

 It's really hard to stress the importance of do not chase,  said Jaskula.  Everybody sees this little dog buzz across the intersection or maybe around their employee housing, and the first instinct is to call her name and chase her.