California State Route 190 California State Route 190 State Route 190 (SR 190) is a state highway in the U.S. state of California that is split into two parts by the Sierra Nevada. The western portion begins at Tipton at a junction with State Route 99 and heads east towards Porterville before ending at Quaking Aspen in the Sequoia National Forest. The eastern portion begins at US 395 at Olancha, heads east through Death Valley National Park, and ends at State Route 127 at Death Valley Junction. The 43.0-mile (69.2 km) portion over the Sierra Nevada remains unconstructed, and the California Department of Transportation
Death Valley Railroad bought the equipment, track and rolling stock to construct their own line located near Loving, New Mexico, which became the United States Potash Railroad. All the rails from the Death Valley Railroad were used on the new line until about 1941 when they were replaced by heavier-pound rails from the Atchison, Topeka & Santa Fe Railroad. The line was used until 1967 when better potash deposits were discovered in Saskatchewan and Pacific Coast Borax Company merged with U.S. Potash and became U.S. Borax & Chemical Cooperation. All three engines that were on the Death Valley Railroad are preserved. After the