. ▁ ▁T ierra ▁Am ar illa ▁Grant ▁ ▁The ▁T ierra ▁Am ar illa ▁Grant ▁was ▁created ▁in ▁ 1 8 3 2 ▁by ▁the ▁Mexican ▁government ▁for ▁Manuel ▁Mart ine z ▁and ▁sett lers ▁from ▁Ab iqu iu . ▁The ▁land ▁grant ▁en comp ass ed ▁a ▁more ▁general ▁area ▁than ▁the ▁contemporary ▁community ▁known ▁as ▁T ierra ▁Am ar illa . ▁The ▁grant ▁hold ers ▁were ▁unable ▁to ▁maintain ▁a ▁permanent ▁settlement ▁due ▁to ▁" ra ids ▁by ▁U tes , ▁N ava jos ▁and ▁J ic ar illa ▁Ap aches " ▁until ▁early ▁in ▁the ▁ 1 8 6 0 s . ▁In ▁ 1 8 6 0 ▁the ▁United ▁States ▁Congress ▁confirmed ▁the ▁land ▁grant ▁as ▁a ▁private ▁grant , ▁rather ▁than ▁a ▁community ▁grant , ▁due ▁to ▁m istr ans l ated ▁and ▁conce aled ▁documents . ▁ ▁Although ▁a ▁land ▁pat ent ▁for ▁the ▁grant ▁required ▁the ▁completion ▁of ▁a ▁ge ographical ▁survey ▁before ▁issu ance , ▁some ▁of ▁Manuel ▁Mart ine z ' ▁he irs ▁began ▁to ▁sell ▁the ▁land ▁to ▁Ang lo ▁spec ul ators . ▁In ▁ 1 8 8 0 ▁Thomas ▁Cat ron ▁sold ▁some ▁of ▁the ▁grant ▁to ▁the ▁Den ver ▁and ▁Rio ▁Grande ▁Railway ▁for ▁the ▁construction ▁of ▁their ▁San ▁Juan ▁line ▁and ▁a ▁service ▁center ▁at ▁Ch ama . ▁ ▁By ▁ 1 8 8 3 ▁Cat ron ▁had ▁cons olid ated ▁the ▁de eds ▁he ▁held ▁for ▁the ▁whole ▁of ▁the ▁grant ▁sans ▁the ▁original ▁villages ▁and ▁their