It Is probably the thirteen administrative provinces during the Kingdom, plus the fourth greatest with regards to area. Situated in the western Section of the Kingdom, it's bordered towards the west by Riyadh Province, to the north by al-Madinah al-Munawwarah Province, also to the south by al-Bahah and Aseer Provinces. https://sergioco4r4.bloggactif.com/32439322/riyadh-province-fundamentals-explained