▁Battle ▁of ▁Yang ping , ▁Li u ▁Bei ' s ▁H anz h ong ▁Camp aign ▁and ▁the ▁Battle ▁of ▁Mount ▁D ing j un ▁at ▁the ▁nearby ▁D ing j un ▁Mountain . ▁In ▁the ▁Tang ▁D ynast y , ▁Yang ping gu an ▁was ▁a ▁part ▁of ▁San qu an ▁county . ▁San qu an ▁county ▁was ▁sub ordinate ▁to ▁the ▁central ▁government . ▁San qu an ▁county ▁was ▁close ▁to ▁sh udi ▁county , ▁which ▁was ▁convenient ▁to ▁strength en ▁the ▁management ▁of ▁the ▁Q i ang ▁people . ▁Why ▁is ▁the ▁place ▁name ▁three ▁spr ings , ▁only ▁because ▁in ▁its ▁territory ▁there ▁is ▁a ▁three - spring ▁Long men ▁cave , ▁there ▁are ▁three ▁spr ings , ▁Long men ▁cave , ▁there ▁are ▁a ▁large ▁number ▁of ▁liter ati ▁po ems , ▁but ▁later ▁during ▁the ▁cultural ▁revolution ▁was ▁destroyed . ▁ ▁Yang ping gu an ▁land mark - J ig ong sh an , ▁the ▁Yam ag ata ▁such ▁as ▁ro oster ' s ▁comb , ▁so ▁known ▁as ▁J ig ong sh an . ▁Another ▁well - known ▁place , ▁the ▁drum ▁stage , ▁was ▁guard ed ▁by ▁the ▁Tang ▁army , ▁with ▁troops ▁station ed ▁there , ▁leaving ▁a ▁platform ▁where ▁the ▁army ▁used ▁to ▁beat ▁drums , ▁but ▁it ▁has ▁now ▁been ▁destroyed . ▁ ▁Another ▁characteristic ▁of ▁Yang ping gu an ▁is ▁the ▁hu im ing g ou , ▁where ▁many ▁H ui ▁people ▁live ▁and ▁a ▁large ▁number ▁of ▁H ui ▁people