Lying in Whiskey Creek Flat 11 miles (18 km) northwest of Holden, McCornick was a failed land development project that lasted from 1919 until circa 1930.

The company built an aqueduct from Leamington along the foothills of the Canyon Mountains to irrigate vast tracts of potentially fertile farmland.

[3] Salesmen emphasized the conveniences of farming so close to Delta, with its large sugar refinery and the main line of the Union Pacific Railroad.

[2] Despite the damage, the plentiful water produced excellent harvests for most of the farmers that year,[4] enabling them to build some 40 good, permanent homes.

[5] The next year the canal broke a second time, and some families moved away completely, but reports of the settlement's success continued to bring new settlers.

[4] A small post office was established, and the town was named for William McCornick, a Salt Lake City banker and corporate promoter of the Sevier Land and Water Company.