The Apostolic Prefecture of Xinjiang-Urumqi is a pre-diocesan missionary Latin jurisdiction of the Catholic Church in Northwestern China's vast region Xinjiang, which is exempt, i.e. directly dependent on the Holy See and its missionary Roman Congregation for the Evangelization of Peoples, not part of any ecclesiastical province.
It borders on Kazakhstan, Kyrgyzstan and Tajikistan (all three Ex-Soviet West Turkestan), Afghanistan, Pakistan/India-disputed Kashmir, Tibet (Diocese of Kangding), Kokonor (Apostolic Prefecture of Xining), Han-China proper (Archdiocese of Lanzhou) and (Outer) Mongolia.
Its episcopal see is the Cathedral of the Immaculate Conception, in regional capital Ürümqi.
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