Sanctuary Mount was a promontory on Capital Key in the Gem Cities of Kwenn on the planet Kwenn that served as an outpost of the Jedi Order. Sanctuary Mount was the name of both the promontory and the Jedi outpost that had been carved into it.
The outpost was built as part of the Grand Renewal, one of the Great Works of the High Republic Era, with the involvement of Jedi Master Oppo Rancisis. At night, the would shine to remind the people of Kwenn of the Jedi's support. The outpost was still open two hundred years later under the care of Seneschal Voh, although it was no longer frequently attended by Jedi.
When the Jedi High Council discussed closing down unused outposts to better accommodate increased presence elsewhere, the Kwenn outpost was considered, although some of the Masters were reluctant to consider shutting down the outpost. Master Mace Windu proposed that the members of the Council embark on a visit to the Kwenn outpost to meet the people of the planet and determine whether to close it down.