Innermostasia vol 3 Plan 12 - Sketch-plan of ruined fort L.E. - Plan of ruined fort L.F. with burial ground - Sketch-plan of mesa L.C. with grave pits. - These ruins were discovered by Stein to the north-east of the main Lou-lan area as he was starting his trek across the Lop salt sea in search of the ancient Chinese caravan route. He found several corpses and reburied them.