National Register of Historic Places

Old Idaho State Penitentiary

Boise, Ada County, Idaho
Listed
July 16, 1974
Type
District
Period
Listed
Ref No.
74000729

About this property

The Old Idaho Penitentiary State Historic Site was a functional prison from 1872 to 1973 in the western United States, east of Boise, Idaho. The first building, also known as the Territorial Prison, was constructed in the Territory of Idaho in 1870; the territory was seven years old when the prison was built, a full two decades before statehood. From its beginnings as a single cell house, the penitentiary grew to a complex of several distinctive buildings surrounded by a 17-foot-high (5.2 m) sandstone wall. The stone was quarried from the nearby ridges by the resident convicts, who also assisted in later constructions. Less than two miles (3 km) southeast of downtown Boise and near Table Rock, the Old Idaho Penitentiary is operated by the Idaho State Historical Society; the elevation of the site on Warm Springs Avenue is approximately 2,770 feet (845 m) above sea level. Dennis, a kitten found in the prison barn by an inmate in 1952 was kept in the penitentiary for sixteen years. Guards allowed him to keep Dennis even though incarcerated men were not allowed pets. Dennis roamed the yard and made friends. The guards and inmates grew to love him. In 1968, Dennis died in his sleep. The inmates performed a funeral in his honor, even providing him a headstone. Dennis is the only "inmate" buried within the prison walls.

Location

2200 Warm Springs Ave.
Boise, Ada County, Idaho
43.59674, -116.15405

Categories

ARCHITECTURESOCIAL HISTORY
National Register nomination ›
Sources

Property data from the National Register of Historic Places, National Park Service (public domain).

Description adapted from Wikipedia under the Creative Commons Attribution-ShareAlike 4.0 International License.

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Questions about this property

When was Old Idaho State Penitentiary listed on the National Register?

Old Idaho State Penitentiary was listed on the National Register of Historic Places on July 16, 1974.

What type of historic resource is Old Idaho State Penitentiary?

Old Idaho State Penitentiary is classified as a district in the National Register of Historic Places.

What is the period of significance for Old Idaho State Penitentiary?

The period of significance for Old Idaho State Penitentiary is recorded as the listed era.

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