The Salinas Valley's first global market was cowhide, and the labor behind it was not free. Four Franciscan missions turned the valley into a farm and cattle range, building its first irrigation works with Indigenous labor. After Mexico opened the coast in 1822, hides and tallow flowed to Lima and Boston through Monterey. The baptism and burial registers record the human cost, and secularization in 1834 handed most of the land onward.
Mission population peaks, baptism and burial totals differ by source and end date, and Soledad's burial register is lost, so its death toll is an estimate. Claims about Soledad's large aqueduct and irrigated acreage rest on the mission's own account alone.