I'll repost this. This is the route to the Sauvegarde / Salvaguardia from la Besurta in Spain. You'll easily recoginize the zig-zag trail going uphill, and next sharp to the left. Both trails meet at Puerto de Benasque.
IMO there also is another trail that goes around the lakes, haven't found it yet, but I saw one, if i remember well.
Some things I have learned from my searching:
Benasque is the Spanish spelling for Venasque. So it differs depending on whether the source is Spanish or French.
There are three things called Benasque/Venasque:
1. The town Benasque in Spain where she parked. That is below the map in the quote above. It's a couple of hiking hours downhill/south of La Besurta on your map. IMO she would have parked there because she was hiking a loop that would not return her to La Besurta, but to the town.
2. The Port Venasque/Puerto Benasque, this is a pass (doorway) over the spine of the Pyrenees, and also over the border.
3. The refuge Venasque, on the French side, shown as a hut on this map.
IMO the newspaper maps are incorrect, they assume she returned to exactly the same height she reached before the 19th, then turned east and reached Sauveguard. But that makes no sense, contradicts her own posts and SAR, and would not have been possible in the time she had.
I believe she went up Sauveguard on the 21st as a dayhike. Returned to sleep at her campervan, then spoke to her father/Colegate and packed up her gear for another short backpack trip that would take her to the refuge Venasque, per the map above, and continue from there on the red path, on a loop heading east through the French side of the border, and back over the border/spine of the mountain at the pass called Port du Glere, and downhill back to her van at Benasque. This is what the SAR explained, I've quote in other posts above
I haven't been able to find one map that shows all these things, so am reluctant to post anything that might confuse the situation further.
ETA: so to sum up, I believe she started her multiday trip on the 22nd, hiked the 2 or 3 hours from Benasque to the Port Venasque, but being less than an hour from the Refuge, she decided to take a scenic side trip and hike up Sauvegard again, as she had done the previous day.