sentences:  In 1866, Charles Goodnight and Oliver Loving drove vast herds of cattle along the Pecos and set up "cow camps" in Seven Rivers and what is now Carlsbad.John Chisum soon joined them and brought an estimated 100,000 head of cattle of his own through the Pecos Valley.In 1881, Charles B. Eddy came to the area, and with his brother, John, and partner Amos Bissell, developed the Eddy-Bissell Cattle Company.