Mauger was a 5'5" female who stood 5'5" to 5'9" and weighed between 120 and 150 pounds. She was newly married and had gone with her husband to scout for elk near Togowotee Pass when she went missing, per NamUs. She had black hair, was wearing tan pants with a leather belt and high laced boots. She carried a small hatchet in her waistband. An empty sandwich bag was found by searchers.
I got the following images of articles from NamUs and have cropped them for reading convenience.
This is from the PInedale Roundup ("Published Further From a Railroad Than Any Newspaper in the United States" is a hell of a slogan). It was published May 2, 1935.
Here's a good write up about the case on a blog.
Here's another write-up. It has several quotes that I can't find elsewhere and it doesn't cite any sources, so I'm not sure where they come from.
Buckrail has my favorite write-up. The photo at the bottom does interestingly suggest she used the name "Vlasta Fisher" a year prior to her marriage and disappearance. If you think that photo is a match, that is...
Olga was apparently familiar with the area. She had married Carl Mauger in a whirlwind romance and regretted it almost immediately after the ceremony - she wrote to her sister that she had wanted to kill herself, according to the Waters article. Carl had been in a relationship with an Ella Tchack for five or six years before falling in love with Olga.
Mauger's story was unchanged, despite Mauger being held for months.
A snowstorm came in a few days after her disappearance, making finding her impossible.
https://www.findthemissing.org/en/cases/27783/7