
Idaho Capital Building & Old Penitentiary
Self-Guided ONLY
You’ll head out to the “old pen” passing Gowen Field where B-18 and B-26 bomber crews trained during WWII. The base now is home to the Idaho Air National Guard flying the A-10 Warthog, the Idaho Army National Guard, as well as the Boise Airport.
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A bit further down the road you’ll cross over the Oregon Trail that led down to the Boise River. Tracks of wagons can still be found in the area of the historical site just off the road.
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You will cross over the Boise River and turn back to Boise following the river past some of the newest subdivisions. Skirting the foothills, and you will follow the old Warm Springs Road to the Penitentiary.
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The Idaho State Penitentiary, where you can take a self-guided tour. After the tour you will continue down Warm Springs past some of the city’s historical homes. These homes, as well as several government buildings, are heated with hot spring water.
You’ll turn down 9th Street and proceed up to the State Capital Building. Take a quick stop for photos of the Capital. Continue on route, returning to High Desert Harley-Davidson.
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Costs for the Old Penitentiary Tour is $6-Adult or $4 for Seniors 60+
Total approximate time: 4 hours
Roundtrip mileage 36 miles
