▁ ▁Arch ae ology ▁The ▁name ▁probably ▁comes ▁from ▁a ▁mot te ▁in ▁the ▁east ▁of ▁the ▁town land . ▁The ▁Or dn ance ▁Survey ▁Mem oir ▁of ▁ 1 8 3 8 ▁records ▁a ▁tum ulus ▁ 1 8   ft ▁high , ▁outside ▁of ▁which ▁was ▁a ▁par ap et ▁varying ▁in ▁height ▁from ▁ 2 ▁to ▁ 6   ft . ▁The ▁m ound ▁seemed ▁to ▁be ▁constructed ▁of ▁stone ▁and ▁covered ▁with ▁earth . ▁The ▁mot te ▁is ▁a ▁Sch eduled ▁Historic ▁Monument ▁at ▁grid ▁ref : ▁J 2 2 7 4 ▁ 9 0 5 9 . ▁ ▁See ▁also ▁ ▁List ▁of ▁town lands ▁in ▁County ▁An trim ▁List ▁of ▁places ▁in ▁County ▁An trim ▁ ▁References ▁ ▁Category : T own lands ▁of ▁County ▁An trim ▁Category : C ivil ▁parish ▁of ▁Don eg ore ▁Category : Arch ae ological ▁sites ▁in ▁County ▁An trim <0x0A> </s> ▁Union ▁Township ▁is ▁one ▁of ▁the ▁six teen ▁town ships ▁of ▁Brown ▁County , ▁Ohio , ▁United ▁States . ▁The ▁ 2 0 1 0 ▁census ▁found ▁ 3 , 0 6 4 ▁people ▁in ▁the ▁town ship , ▁ 1 , 3 1 4 ▁of ▁whom ▁lived ▁in ▁the ▁un in cor por ated ▁port ions ▁of ▁the ▁town ship . ▁ ▁Geography ▁Loc ated ▁in ▁the ▁southern ▁part ▁of ▁the ▁county ▁along ▁the ▁Ohio ▁River , ▁it ▁borders ▁the ▁following ▁town ships : ▁By rd ▁Township ▁- ▁n ortheast ▁Hun ting ton ▁Township ▁- ▁sout heast ▁Jefferson