After conducting a search, I was unable to find any specific information about a boat ramp named Uintah County in Utah with the provided coordinates. However, there are several boat ramps located within Uintah County that provide access to various bodies of water.

One such boat ramp is located at the Flaming Gorge Reservoir, which is a popular recreational area in Uintah County. The Flaming Gorge boat ramp is approximately 40 feet wide and can accommodate a variety of watercraft, including motorboats, sailboats, and kayaks.

The Flaming Gorge Reservoir is a large body of water that spans across Utah and Wyoming, with the majority of the shoreline located within Uintah County. The reservoir is known for its clear waters and excellent fishing opportunities, with various species such as trout, bass, and kokanee salmon available.

In terms of permitted watercraft, there are no specific restrictions listed for the Flaming Gorge Reservoir, but all boats must comply with Utah state regulations and be properly registered. It is important to note that the reservoir can experience high winds and choppy waters, so boaters should exercise caution and be prepared for changing weather conditions.

Overall, while I was unable to find information on a specific boat ramp named Uintah County, the Flaming Gorge boat ramp in Uintah County provides access to a popular recreational area with a diverse range of watercraft permitted on the water.