The town-site of Parshall was part of the ranch homesteaded by Fred Dean in the 1880s. Before 1900 the ranch belonged to William Byers, founder of the Rocky Mountain News and town of Hot Sulphur Springs. In 1902 Frank Byers, son of William Byers, sold the ranch of 480 acres to Cordelia Parshall. Mrs. Parshall was the wife of Ralph Parshall, an engineer who invented a device to measure the flow of water through irrigation ditches. The invention is still in use today and is called the Parshall Flume.
Sometime prior to January 15, 1907, Cordelia Parshall died, leaving the ranch to her sons Simon and Clyde. In 1907 the sons sold 60.6 acres of the northeast corner of the ranch to Alonzo F. Polhamus, a civil engineer. Polhamus dedicated the town plat to Grand County on July 26, 1907 and named it for his friend, Ralph Parshall. The original primitive store operated by Walter Dow was the drawing card for visitors. Parshall was the headquarters of the “Williams Fork Telephone Company,” a highly informal operation that is said to have transmitted its subscribers’ voices along barbed wire fences.
The town was never incorporated and today still has one store, a bar and restaurant, a post office and a chapel, plus the Grand County Road and Bridge Dept. District 3 maintenance shops. Population varies seasonally between 75 and 90 people.
R.C, Black, Island in the Rockies. Pruett Publishing Company, 1969