Leavenworth, << LEHV uhn wurth, >> Prison is a federal penitentiary in the United States. Its official name is United States Penitentiary, Leavenworth, Kansas. It is on the Fort Leavenworth reservation on the Missouri River north of Leavenworth. Besides the buildings of the civil prison, a federal military prison also stands on the grounds. Leavenworth Prison was established in 1895.
