Utah Territory was created in 1850.
It was a Colony.
No it is not.
The Utah Territory.
The territory of Utah before it became a state covered parts of Nevada, Colorado, and Wyoming. One colony outside of Utah, that I am aware of is a colony that the Mormons established within Las Vegas. Their in Las Vegas is an old Mormon fort where the first inhabitants attempted to colonize the rugged and inhospitable desert area of Nevada.
territory
Utah Territory wasn't formed from any state. The land was purchased from Mexico and simply called "Mexican Territory" previously.
Fillmore was the original Capital of Utah Territory.
Fillmore, UT
Territory ruled by a distant land is called a colony. A colony is any people or territory separated from but subject to a ruling power or government.
Arizona was a territory, not a colony.
It was part of the Utah Territory.