At this westerly end of the Han Wall, the building materials are dirt and sand mixed with layers of straw and wood. Even so they have survived to this point oll these years. There are piles of wood and straw that were the attack warning beacon. They have become partially fossilized

This is Version 1 of a project to map the Great Wall of China. It is based upon high-resolution images in GE, but also from frequent visits to different parts of the Great Wall. ZOOM IN TO SEE THE LINEAR ROUTE; ONLY THE PLACEMARKS SHOW AT HIGH ALTITUDE 

The pink colour lines are confirmed either from GE or from actual GPS tracks (mainly in Gansu, Shanxi, Hebei and Inner Mongolia). In some places, placemarks are used for specific known single sites. A green line is used for interpolated gaps, although short gaps of less than 500m are generally ignored. A (discretionary) yellow line has been used in areas of low-resolution and sometimes to dilineate specific possibilities of related structures. Beacon towers, watchtowers and fortresses are located (althogh there is some inconsistency in terminology as various parts were drafted at different times!). This has been done so far only in patches...as I said, this is a work in progress! 

There is plenty of tidying up to do, so your patience is tolerated. It is intended to use specific customised icons. 

Section numbering starts at 100 for each folder and different lines or spurs start at 200, 300 etc. The most extensive coverage so far is for the Dunhuang area, Jiayuguan and Jiuquan, Gulang County in Gansu and east towards Jintai, the eastern part of Zhangjiakou city, Badaling (naturally). 

The next areas to be covered will be northern Shaanxi, Huanghuacheng-Jiankou-Mutianyu and the "Qingdao" Great Wall. Several suspected parts of the Jin Great Wall in the suburbs of Hohhot and in the area north of Dalai Nur have been plotted from GPS cooordinates. The use of NX means "not exact", where coordinates have been taken some distance from a structure. 

Additional fortifications have been identified by placemarks, although eventually I hope to get around to identifying specific linear features with a path (e.g. the Hidden Great Wall at Jiayuguan). If anyone has specific GPS coordinates of former oases and beacon towers in the eastern Taklamakan/Kumtag Shamo (I need the exact locations, not guesswork from low-res GE!). Anyone wishing to donate high-res overlays of that area sufficient to allow the planning of a jourmey from Yumenguan to Hami, that would be particularly appreciated!

- Mark

Great Wall of China

• The Longest Way - A walk from Beijing to Bad Nenndorf Germany

Comments

Andrew Royle, on September 28, 2008, said:

Such an intriguing object!

罗布泊, on September 28, 2008, said:

Hi.Andrew Royle先生.I roam in those Canyuanduanbi, looking about. The world does not seem to be able to stand up to what time the baptism of grinding, who have a strong and brilliant is no exception. And to the existence of hundreds of years of historical sites, especially small vulnerable human beings. At best, for decades the lives of mileage, we would like to be able to do is limited. In the long river of history, human beings, such as remote dust. China Xinjiang Urumqi friends. Lop Nur

罗布泊, on September 28, 2008, said:

Han ruins of the Great Wall, Gansu west of Dunhuang City, today at the western end of the kiln Bay pier, along the Shule by the pit after the son of Yumen Pass, Yueya Hu, who Anxi pier of three, had the West Lake, Fort Point fire, Bulong Ji, the Bay Bridge, through Yumen shihe north coast into the urn after Jo-shui along the North-Ju Yan. Another road from the urn by the Heihe shun the high-profile, Linze, Zhangye, Shandan, had Yongchang, Minqin, Wuwei, Gulang, Yeongdeungpo and other places, people Duhuang He Ningxia Hui Autonomous Region. Gansu Province in the territory of a total length of 1,000 kilometers. Founded in 2002 Yuanshou Emperor (formerly 121), limited to four years beginning (before 101). As a result of the military's defense needs of the construction of sub-paragraph, so the mixed system. In general, the first barrier set up booths, depending on the terrain and the need to build wall, so there are some barrier kiosks without the wall, intermittent, but on the whole line can not even form a military defense alarm System. When the construction of local conditions and local materials. From sand rammed the wall, and mixed red, Populus, and and venetum reeds and other objects to solid-bonding network, a strong anomaly. Department put the outside retaining trench soil, sand pit with a flat, to check for footprints in transit, called "TIEN days." Gao Jun inside, Sui, the pier, Fort, the city is not even across the so-called "Sui-Wuli, a ten Tun, 30, a fort, a hundred miles City." Feng Sui to build a plate compactor, reed, Populus, such as red folder Benzhu sand, bricks to build outsourcing Rammed earth, bricks and other forms Lei Qi, who reached 10 meters high. Two thousand sandstorms calendar, although snow and rain, some sections are still strong, such as pan, standing in the Gobi Desert, such as Jiao Long winding, the momentum out of the ordinary. OK. Urumqi in Xinjiang Chinese friends. Lop Nur

Andrew Royle, on September 29, 2008, said:

Hello there again 罗布泊. So this relic then would have been uncovered by the surrounding sand which has blown away in more recent times to thus expose it? Is the relic fossilized or is it still composed of wood and straw?

Greetings from Australia. -AR.

您好！有再次罗布泊。因此，这遗物然后将已发现周围的沙子有风吹走的更近倍， 从而揭露呢？是的遗迹化石，还是仍然组成的木材和稻草？

罗布泊, on September 29, 2008, said:

Hi.Andrew Royle

先生.仍然组成的木材和稻草,中国新疆乌鲁木齐.罗布泊
Mr. Is still composed of wood and straw, Urumqi, Xinjiang Lop Nor

罗布泊, on September 29, 2008, said:

Mr. Hi.Andrew Royle.'s Still composed of wood and straw, China Urumqi, Xinjiang. Lop Nur

Andrew Royle, on September 30, 2008, said:

It's amazing that the object doesn't get worn away by the elements then. I imagine that it is very fragile.

这是惊人的，它不会削弱了当时的天气。我想的对象是非常脆弱的
This is amazing, and it will not weaken the weather at that time. I think the object is very fragile.

-AR.