Mapping a Human Rights Horror: Calculating the Detentions in Xinjiang

By Jennifer Zeng
Jennifer Zeng
Jennifer Zeng
Jennifer Zeng is a freelance contributor to The Epoch Times.
December 28, 2018 Updated: December 30, 2018

The world believes a human-rights catastrophe is taking place in Xinjiang Province in western China, with large numbers of Uyghurs and other Muslims being herded into prisons and re-education camps.

But how does one document the scale of the detentions that are happening there?

Through arduous searching and researching of Google Earth satellite images, a Chinese dissident was able to locate 19 possible prisons and 15 possible re-education camps in Kashgar Prefecture (officially known as Kashi Prefecture), in Xinjiang, with a total possible capacity of a half-million people.

Li Fang, who is living in exile in Finland, spent about a month to painstakingly conduct a “blanket search,” and “comb” through Google Earth images of Kashgar, looking to verify, or find evidence for, the allegation that more than a million people could be held in the re-education camps and prisons in Xinjiang, in a massive crackdown launched by the Chinese Communist Party (CCP).

While more than 80 percent of the Uyghurs in Xinjiang live in south Xinjiang, almost 38 percent, or more than 4.2 million, live in southwestern Xinjiang’s Kashgar.

So, Li concluded, studying that area might give the outside world an important window into the situation of all of Xinjiang.

Using the data history function of Google Earth, Li initially found that several prisons in Shule County and Kargilik (or Yecheng) County had been significantly expanded since 2017.

Then, he decided to “comb” through all the counties in Kashgar, and found as many as 19 prisons. If the sub-prisons belonging to two major facilities were also counted, there are as many as 27.

While searching and studying the prisons, Li also found some abnormalities with some buildings, communities or schools. For example, there are many wire nets or fences inside or outside of those places.

Through careful study, Li concluded that these should be the re-education camps. He found about 20 such facilities in Kashgar and figured that 15 of them are possible camps.

Epoch Times Photo
Li Fang. (Li Fang’s Twitter account)

Observation of Prisons

The criteria Li used to locate prisons are:

• There are thick, straight, and enclosing walls outside the area;

• Watchtowers higher than the enclosing walls can be found at two or four corners of the enclosed area;

• Usually, very obvious “patrol roads” can be seen inside and outside the enclosing walls.

• The buildings inside the enclosing walls are very evenly laid out and are at a distance from the walls. Usually, there are no vehicles inside the walls.

With these criteria, Li was not only able to locate 19 prisons, but also see the process of expansion of some of the prisons with the help of Google Earth’s data history.

For example, at 5.28 miles west of Yarkant County (geographic grid: N: 38° 24’47”. E: 77° 08’54”), a prison built before 2007 could be found, covering an area of about four acres, and with buildings having an estimated capacity of 1.83 acres (for example, a two-story building that covers an acre would have a capacity of two acres).

The Google Earth image of the same prison in 2014 shows that it’s been expanded, through 4.14 new acres of land. In the added areas, new buildings have a capacity of 3.48 acres, while two new buildings in the old area have a capacity of 0.77 acres.

A Google Earth image on Oct. 21, 2017, shows an addition of 9.28 acres, and buildings with a capacity of 5.89 acres, while an image on May 8, 2018, shows that another new area of 3.63 acres was added, with a building capacity of 2.67 acres.

So, as of May 2018, the total area for this prison was 21.07 acres, whose buildings had a capacity of an estimated 14.32 acres.

And Google Earth images indicate that the facility is still being expanded.

Observation of Re-Education Camps

The criteria Li used to locate re-education camps are:

• There are enclosing walls and barbed wire around the area;

• There are partition walls, or barbed wire, or iron fences inside the camps, which divide the building group into several discrete areas;

• There are watch-box-like facilities in the areas;

• The areas are very “quiet,” with no vehicles or very few vehicles inside;

•  The above characteristics generally appeared simultaneously after 2017.

Using these criteria, Li was able to locate 15 possible re-education camps in Kashgar.

Epoch Times Photo
A suspected re-education camp in Kashgar Prefecture, Xinjiang Province, at about 2.45 miles east of Shule City, identified by Google Maps as an image taken on Sept. 8, 2018. (Google Maps via Li Fang)

For example, at about 2.45 miles east of Shule City (geographic grid: N: 39 ° 24′ 27″. E: 76 ° 05 ’38”), a possible re-education camp exists.

A satellite image from February 2016 shows that the area looks like a school, which covered an area of about 8.66 acres, with an estimated building capacity of 3.01 acres.

Throughout the data history, an expansion can be seen, starting in August 2016. In July 2017, some blue-roofed buildings were added, and the density was quite high. In November 2017, expansion in the peripheral area began, and many houses around the site were demolished.

The expansion was completed in September. At that point, the total area was about 12.21 acres, with a building capacity of 12.91 acres.

Li said the sudden large-scale expansion happened after current CCP Xinjiang Secretary Chen Quanguo—the official considered to be responsible for the suddenly intensified repression of the Uyghurs—took office there in August 2016.

The buildings inside the area are of very high density. There are not only enclosing walls outside the camp, but many partitioning walls inside. Many watch-box-like facilities can also be seen inside. So Li concluded that the site could be a re-education camp.

Highest Cement Production Growth

Li believes that cement production figures corroborate the buildup of prisons and re-education camps in Xinjiang.

According to China’s National Bureau of Statistics, cement production in China in 2017 declined 0.2 percent from 2016. However, cement production in Xinjiang increased by around 13 percent in the same year, which was the highest growth rate among all 31 provinces and cities under the direct control of the central government.

While the year-on-year monthly cement production in December 2017 for all of China fell 2.2 percent, Xinjiang’s output jumped about 65 percent, which also was highest among all of the 31 provinces and cities, and much higher than the area with the second-highest growth, which was Liaoning Province at almost 17 percent.

Nineteen provinces and cities of the 31 experienced negative growth in December 2017; 20 of the provinces and cities experienced negative growth in 2017.

Sudden Increase in Steel Production

Xinjiang’s steel production fits a similar pattern, Li says.

Since Xi Jinping took power in 2012, steel production in Xinjiang had been falling, except for 2016, when it experienced a slight uptick. However, in 2017, Xinjiang’s steel output jumped almost 28 percent, with December’s growth at about 43 percent.

Li says the sudden increase in cement and steel production correlates with the large-scale expansion or construction of prisons and re-education camps in Xinjiang.


By adding up the total building capacity for the prisons and re-education camps, Li came to the following conclusions:

• The total estimated capacity of buildings in the 19 prisons is 351 acres, and an estimated 262 acres was built after 2017, which equates to 74.45 percent of the total.

• The total estimated building capacity in the 15 possible re-education camps is 269 acres. And, except for one camp, they all appeared after October 2016, two months after Chen took office in Xinjiang.

• Prisons hidden inside farms, and without tall, enclosing walls or watchtowers can’t be located with the above criteria. Therefore, the actual number of prisons may be much higher.

• Re-education camps hidden inside large closed buildings, such as large markets, skirt buildings, underground facilities, or bomb shelters, can’t be located with the above criteria. Therefore, the actual number of re-education camps might be much higher.

• The total building capacity of the 19 possible prisons and 15 possible re-education camps is 620 acres. According to Hong Kong’s standard, the average living space for each prisoner is 4.66 square meters, or about 50 square feet. China’s standard is unknown. However, using an average area of five square meters, or approximately 54 square feet, by rough calculation, the 620 acres of buildings can hold a half-million people.

• If a half-million people are being imprisoned in Kashgar, that means 12 percent of the entire population in that area is in prisons or re-education camps. If 12 percent of the population of Xinjiang is in prisons or re-education camps, that would equate to 1.36 million people who are in detention, or significantly more than the United Nations’ estimate in October that a million Uyghurs are being detained.


A table with information about the prisons in Kashgar Prefecture, Xinjiang Province, identified by Li Fang. (Li Fang):



Location Floor area(m2) Building capacity (m2) Area expanded

after 2017 (m2)

1A N:38°58’07″ E:77°26’05″ 294845 132000 102000
1B Next to A 30000 11000
1C N:38°59’40″ E:77°26’44″ 70143 55810
1D N:39°01’07″ E:77°27’40″ 9213 5760
1F N:39°03’21″ E:77°26’09″ 15429 4200
2 N:37°54’45″ E:77°20’55″ 230748 230560 199556
3 N:38°19’02″ E:77°12’37″ 36889 80904 80904
4 N:38°21’45″ E:77°13’29″ 49038 86712 86712
5 N:38°24’47″ E:77°08’54″ 85280 57964 33348
6 N:38°21’23″ E:77°15’51″ 380240 67242 67242
7 N:38°56’14″ E:76°03’20″ 30000 10238
8 N:38°56’14″


5600 3882
9 N:39°28’18″ E:75°41’55″ 139918 91920
10 N:39°23’26″ E:76°01’23″ 64449 22800
11 N:39°21’34″ E:75°51’51″ 64288 87915 78315
12 N:39°21’29″ E:76°03’04″ 120700 306000 300000
13 N:39°13’15″ E:76°46’06″ 8649 5856
14 N:39°25’47″ E:76°03’19″ 18975 16456
15 N:39°22’03″ E:76°00’37″ 3600 2700
16A N:38°21’45″ E:77°07’16″ 27750 13002 13002
16B N:38°21’48″ E:77°07’08″ 56700 26280 26280
16C N:38°21’55″ E:77°07’10″ 47488 17644
16D N:38°21’43″ E:77°07’20″ 9450 3400 3400
17 N:38°54’43″ E:77°38’58″ 3400 4368
18 N:38°21’06″ E:77°18’21″ 48617 53984 53984
19 N:39°47’03″ E:78°33’41″ 20050 22390 13590
Total 1,871,459 1,420,987 1,058,333


A table with information about possible re-education camps identified by Li Fang. (Li Fang):



Location Floor area (m2) Building Capacity a (m2) Appearance time
1 N: 39 ° 24′ 27″

E: 76 ° 05 ’38”

49410 52234 Jul. 2017
2 N:39°27’26″ E:76°02’03″ 52843 42500 Apr. 25, 2017
3 N:39°25’54″ E:76°03’21″ 81378 72356 May 2017
4 N:38°23’11″ E:77°13’28″ 46800 67828 Jul. 14, 2018
5 N:38°23’22″ E:76°16’16″ 195818 139971 Oct. 27, 2017
6 N:39°19’57″ E:75°41’15″ 206364 90820 Sep. 03, 2017
7 N:38°57’38″ E:76°09’21″ 59574 36480 Oct. 05, 2017
8 N:39°22’51″E:76°04’42″ 19167 27060 Mar. 25, 2017
9 N:39°46’33″ E:78°32’39″ 56028 42316 Mar 01, 2017
10 N:39°49’08″ E:78°31’04″ 156400 241259 2018
11 N:39°48’08″ E:78°32’42″ 28000 11300 Mar. 01, 2017
12 N:39°48’18″ E:78°32’50″ 219240 88071 Jun. 12, 2015
13 N:39°29’18″ E:76°42’21″ 92208 82285 Sep. 07, 2017
14 N:39°22’55″ E:76°04’18″ 125286 74850 Nov. 23, 2017
15 N:39°24’19″ E:76°04’28″ 30555 18656 Oct.2016
Total 1419071 1087986









Jennifer Zeng
Jennifer Zeng
Jennifer Zeng is a freelance contributor to The Epoch Times.