We were camping nearby and found this trackable to place it somewhere else :) (sorry it took so long to log)
Photos of Montargil, where we found the item:
1) https://www.flickr.com/photos/desateixeira/15032741198/
2) https://www.flickr.com/photos/desateixeira/15216229931/
3) https://www.flickr.com/photos/desateixeira/15216230811/