The Hollenberg Pony Express Station (also called Cottonwood Station) was built in 1857 by Gerat Hollenberg, who emigrated to America from Germany, it stands near Hanover in Washington County, Kansas. As well as serving as a Pony Express Station (1860-61) it was also a way station for travelers on the Oregon-California Trail. Gerat Hollenberg was a colorful character, he searched for gold in South America and Australia and took part in the California gold rush in 1849 before settling in Kansas. He founded nearby Hanover and served three terms in the Kansas Legislature. In 1874 his health was failing and he decided to return to Germany, a few hours out of New York he died and was buried at sea.
Each year on the last Sunday in August the Pony Express Festival is held at the Station which is a State Historic Site. This year the event was held on August 30th.