The Mexican War ended in 1846, but the treaty of Guadalupe Hidalgo was not signed until 1848. Meantime, Utah was occupied by the Mormon pioneers, who having no land laws to guide them took land according to a plan furnished by Brigham Young. In Salt Lake City 10-acre blocks were divided into 8 building lots of 1 1/4 acres each. Just at the edge of the city were "five acre lots to accommodate mechanics and artisans; next beyond were 10-acre lots, followed by forty and eighty acres, where farmers could build and reside."
Peterson, William; Cardon, P. V.; Ikeler, K. C.; Stewart, Geroge; and Esplin, A. C., "Bulletin No. 203 - Cattle Ranching in Utah: Report of a Preliminary Economic Survey of the Ranch Situations as of 1925" (1927). UAES Bulletins. Paper 172.