S2, E28: This Salt Lake City Park Used to Be a Prison?!
ugarhouse Park is one of those Salt Lake City places you think you already know: a pond, big lawns, sports fields, a running loop, and that sledding hill everyone talks about. But local history flips the whole scene on its head. Stand near the grass and rewind a century, and you’re not in a park at all, you’re on the grounds of the Utah Territorial Penitentiary, later the Utah State Prison. This Sugar House neighborhood landmark holds a true “hidden history” story about how cities change, how land gets reused, and how memories get paved over by everyday life. For anyone searching for Salt Lake City history, historic sites in Utah, or the real story behind Sugarhouse Park, this deep dive is a reminder that the past is often closer than it looks.
Long before prison walls defined the property, the area’s identity was shaped by a different ambition: sugar. When Mormon pioneers arrived in the Salt Lake Valley in 1847, isolation made self-sufficiency more than a slogan. Sugar was costly to haul across the country, so leaders backed an early bet on European-style beet sugar production. They studied methods overseas, bought specialized machinery, and dragged it to Utah with enormous effort. By the early 1850s, operations were set up around what we now call Sugar House. The twist is that the sugar experiment largely failed at producing refined sugar at a commercial scale, yet it succeeded in one lasting way: it named the neighborhood. That kind of near-miss is classic Utah history, where big plans don’t always work but still leave permanent marks on maps.
While sugar dreams faded, the territorial government pursued something far more concrete. In the early 1850s, Congress approved funding for a penitentiary, and Brigham Young chose a site about six miles southeast of downtown Salt Lake City, which felt like countryside at the time. The prison opened in 1855 in a surprisingly minimal form: just 16 cells dug into the ground with iron bars over the top. Underfunding plagued the operation, staffing was thin, and escapes were common. Historical accounts describe an 1861 jailbreak where eight of nine inmates got out, and over the broader period from 1855 to 1878, 47 of 240 prisoners escaped, nearly one in five. As the prison grew into a more substantial facility, it also became a stage for major conflict between the federal government and the LDS Church, including prosecutions tied to plural marriage, with prominent leaders like George Q. Cannon serving time in striped uniforms.
Then came the name that pushed this site into international labor history: Joe Hill. A Swedish immigrant, IWW organizer, and songwriter, Hill turned labor rights into music that working people could actually sing. After the 1914 murders of Salt Lake grocer John Morrison and his son Arling, Hill arrived at a doctor’s office with a gunshot wound the same night and refused to name who shot him. He was arrested, convicted on circumstantial evidence, and his supporters argued he was targeted for radical politics. Protests and petitions spread worldwide, even drawing President Woodrow Wilson into efforts to delay the execution, but the conviction stood. On November 19, 1915, Joe Hill was executed by firing squad in the prison yard on what is now Sugarhouse Park, and a monument still marks his legacy today.
By the mid-20th century, the prison’s biggest problem wasn’t inside the walls, it was the city growing up around them. Streetcars, homes, and businesses turned an “out there” prison into a prison in the middle of a neighborhood. Utah authorized a replacement facility near Point of the Mountain, and in 1951, 575 prisoners were bused to what many now associate with Draper. Demolishing the old prison proved stubborn, with dynamite barely denting the stone before crews dismantled large sections piece by piece. What followed is a powerful urban transformation story: debates over golf courses, amusement parks, and commercial development, lobbying by Horace Sorensen for public green space, and a final deal that split the former prison grounds into today’s Sugarhouse Park and Highland High School. The result is a rare kind of civic reset, where a place built to confine becomes a place people choose to gather, and where learning the backstory changes how you see the landscape.
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