Map - Grand County, Utah (Grand County)

Grand County is a county on the east central edge of the U.S. state of Utah, United States. As of the 2010 United States Census, the population was 9,225. Its county seat and largest city is Moab.

Evidence of indigenous occupation up to 10,000BCE has been previously discovered in Grand County. The present city of Moab is the site of pueblo farming communities of the 11th and 12th centuries. These groups had already vanished from the area when the first European explorers entered the country, with nomadic Ute tribes inhabiting the area at the time of contact.

The European-based settlement of the area began with the arrival of Mormon pioneers in 1847. By 1855 they had sent missionary settlers into eastern Utah Territory. An Elk Mountain Mission was established but closed after a few months due to Indian raids. For several decades after that, the future Moab area (known as "Spanish Valley") was visited only by trappers and prospectors. Permanent settlement began in 1877. These early settlers, coming in from the north, encountered the deep canyon walls of the Grand River and could not take wagons over or around the steep canyon walls.

They unloaded their supplies, dismantled the wagons, and lowered them by rope to the river valley. They then drove their oxen over a canyon rim, down deep sand dunes. After the wagons were reassembled and supplies reloaded, they made their way through the deep sand to the river. They found a place to ford the river below the present bridge in north Moab. They later established a ferry at the crossing site, which remained in use until the first bridge was built in 1921.

In 1881 the area was known as Grand Valley, and Moab was a "wild west" town. A 1991 visitor to Moab later said it was the toughest town in Utah because the area and surrounding country have many deep canyons, rivers, mountains, and wilderness areas, becoming a hideout for outlaws. The local economy was initially based on farming and livestock. Mining came in at the end of the 19th century, and the railroad arrived. The first school in the county was started in 1881. Mormon settlers began planting fruit trees by 1879, and by 1910 Moab was a significant fruit-production center.

Due to the distances involved, the settlers of eastern Emery County found it difficult to conduct county business in that county's seat. By March 13, 1890, their petitions caused the Utah Territory legislature to designate the eastern portion of the county as a separate entity, to be named Grand County, named for the Grand River (whose name was changed to Colorado River in 1921). The county boundaries were adjusted in 1892 and in 2003.

Exploration for deep petroleum deposits began in the 1920s, and this industry has significantly contributed to the economy since that time. Other significant industries include uranium mining and filmmaking.