▁administrative ▁count ies . ▁R ivers ▁and ▁roads ▁are ▁displayed ▁with ▁similar ▁line ▁symbols ; ▁this ▁makes ▁interpre ting ▁the ▁map ▁somewhat ▁difficult , ▁although ▁the ▁labels ▁of ▁rivers ▁placed ▁in ▁order ▁of ▁stream ▁flow ▁are ▁helpful ▁to ▁modern ▁day ▁cart ograph ers . ▁These ▁maps ▁also ▁feature ▁locations ▁where ▁different ▁types ▁of ▁tim ber ▁can ▁be ▁gathered , ▁while ▁two ▁of ▁the ▁maps ▁state ▁the ▁distances ▁in ▁mile age ▁to ▁the ▁tim ber ▁sites . ▁In ▁light ▁of ▁this , ▁these ▁maps ▁are ▁perhaps ▁the ▁oldest ▁economic ▁maps ▁in ▁the ▁world ▁since ▁they ▁pre date ▁Stra bo ' s ▁economic ▁maps . ▁ ▁In ▁addition ▁to ▁the ▁seven ▁maps ▁on ▁wooden ▁blocks ▁found ▁at ▁T omb ▁ 1 ▁of ▁F ang mat an , ▁a ▁fragment ▁of ▁a ▁paper ▁map ▁was ▁found ▁on ▁the ▁ch est ▁of ▁the ▁occup ant ▁of ▁T omb ▁ 5 ▁of ▁F ang mat an ▁in ▁ 1 9 8 6 . ▁ ▁This ▁tomb ▁is ▁dated ▁to ▁the ▁early ▁Western ▁Han , ▁so ▁the ▁map ▁dates ▁to ▁the ▁early ▁ 2 nd ▁century ▁BC . ▁ ▁The ▁map ▁shows ▁top ographic ▁features ▁such ▁as ▁mountains , ▁water ways ▁and ▁roads , ▁and ▁is ▁thought ▁to ▁cover ▁the ▁area ▁of ▁the ▁preceding ▁Q in ▁Kingdom . ▁ ▁Ear liest ▁ge ographical ▁writing ▁In ▁China , ▁the ▁earliest ▁known ▁ge ographical ▁Chinese ▁writing ▁dates ▁back ▁to ▁the ▁ 5 th ▁century ▁BC , ▁during ▁the ▁beginning ▁of ▁the ▁W arring ▁States ▁( 4 8 1 – 2 2