Based on available information, the boat ramp named Little Deer Road 22400 is located in the Town of Siren in Wisconsin, with a latitude of 45.72872925 and a longitude of -92.3456192. It is a public boat ramp that provides access to a body of water known as Little Yellow Lake.

The boat ramp is said to be wide enough to accommodate various types of watercraft, including fishing boats, canoes, kayaks, and small to medium-sized motorboats. However, the exact width of the ramp is not specified.

According to the Wisconsin Department of Natural Resources, Little Yellow Lake covers an area of 635 acres and has a maximum depth of 23 feet. The lake is popular for fishing, with species such as walleye, northern pike, largemouth bass, and panfish available.

In terms of regulations, boaters are required to follow the Wisconsin boating laws and regulations, including displaying the appropriate safety equipment and obtaining the necessary licenses and permits. Additionally, the use of watercraft with internal combustion engines is restricted to no-wake speeds on Little Yellow Lake.

Overall, the boat ramp at Little Deer Road 22400 appears to be a convenient access point for boaters looking to enjoy the recreational opportunities offered by Little Yellow Lake in the Town of Siren, Wisconsin.