In the late 1960's a few cattlemen experimented by combining Simmental with Brahman, these crosses evolved into the breed Simbrah.
Originally developed in the hot, humid areas of the Gulf Coast, Simbrah have been selected so they can thrive in the Northwest and Northeast regions of the United States where temperatures range from 115 degrees in the summer to 25 degrees below zero in the winter.
The Brahman was chosen for heat and insect tolerance, hardiness and excellent foraging ability, as well as maternal calving ease and longevity. The Simmental for early sexual maturity, fertility, milking ability, rapid growth and good beef characteristics. The docile disposition of most Simmental is also a plus for this composite. These two cattle breeds have been used in cooperation to produce Simbrah.