▁county ▁se al ▁with ▁the ▁picture ▁of ▁the ▁Civil ▁War ▁general , ▁sett ling ▁the ▁conflict . ▁ ▁Geography ▁According ▁to ▁the ▁U . S . ▁Census ▁Bureau , ▁the ▁county ▁has ▁a ▁total ▁area ▁of ▁, ▁of ▁which ▁ ▁is ▁land ▁and ▁ ▁( 1 . 1 %) ▁is ▁water . ▁It ▁is ▁the ▁third - small est ▁county ▁in ▁Nev ada ▁by ▁area . ▁The ▁highest ▁point ▁is ▁approximately ▁ 1 0 , 5 6 5 ▁feet ▁( 3 , 2 2 0 ▁m ) ▁on ▁the ▁n ortheast ▁r idge ▁of ▁Middle ▁Sister , ▁the ▁peak ▁of ▁which ▁is ▁located ▁in ▁adjacent ▁Mon o ▁County , ▁California , ▁while ▁the ▁highest ▁independent ▁mountain ▁completely ▁within ▁Lyon ▁County ▁is ▁the ▁nearby ▁East ▁Sister . ▁The ▁most ▁top ograph ically ▁prominent ▁peak ▁in ▁Lyon ▁County ▁is ▁Bald ▁Mountain . ▁ ▁Part ▁of ▁the ▁To iy abe ▁National ▁Forest ▁is ▁located ▁within ▁Lyon ▁County . ▁ ▁Major ▁high ways ▁▁▁ ▁Inter state ▁ 1 1 ▁( Future ) ▁▁ ▁Inter state ▁ 8 0 ▁▁ ▁Inter state ▁ 8 0 ▁Business ▁( W ad sw orth – Fern ley ) ▁▁ ▁U . S . ▁Route ▁ 5 0 ▁▁ ▁U . S . ▁Route ▁ 9 5 ▁▁ ▁U . S . ▁Route ▁ 5 0 ▁Altern ate ▁▁ ▁U . S . ▁Route ▁ 9 5 ▁Altern ate ▁▁ ▁State ▁Route ▁ 2 0 8 ▁▁ ▁State ▁Route ▁ 3 3 8 ▁▁ ▁State ▁Route ▁ 3 3 9 ▁▁ ▁State