Hoboksar (Chinese: 和布克赛尔蒙古自治县; pinyin: Hébùkèsài'ěr Měnggǔ Zìzhìxiàn), sometimes referred with the historic name Hefeng County (和丰县; Héfēng Xiàn), is an autonomous county for Mongol people in the middle north of Xinjiang Uyghur Autonomous Region, Western China, it is under the administration of Tacheng Prefecture.

[3] The name of Hoboksar (Ховогсайр) was individually referred to as "Hobok" (ховог) and "Sar" (сайр) from the Mongolian language.

[2] At the latest starting from the Qing dynasty, the Saka people appeared in the place of present Hoboksar area.

It was under the administration of Kunling Protectorate (崑陵都護府) of the Tang dynasty in 657, ruled by Karluks in 789, Uyghur Khaganate in 808, Kyrgyz Khaganate in 840 and Qara Khitai in 1127, it was merged to the Yuan dynasty in 1218, became the dominion of Ögedei Khan in 1225, then after that, the territory of Beshbalik Province (Beiting) and Almaliq Province in 1280, it was merged to Chagatai Khanate during 1324 - 1328.

After Batur's succession to Khong Tayiji in 1636, he quickly unified the Oirats tribes in the North Xinjiang, with Hoboksar as the base camp.

Due to the increasing water diversion for irrigation and other human needs, as well as geological processes, the Alan Nur has fully dried out, and the Manas Lake is in a fairly precarious situation as well.

It is roughly 2646 kilometres away from the Arctic Ocean and a similar distance from the Bay of Bengal and the Arabian Sea (see Continental Pole of Inaccessibility for other candidates).