After doing some research, I was unable to find any information about a boat ramp specifically named AHRA - Ruby Mountain Rec Sits in Colorado. However, there is a state park called the Arkansas Headwaters Recreation Area (AHRA) that has a boat ramp at the Ruby Mountain Recreation Site.

According to the AHRA website, the boat ramp at Ruby Mountain is a concrete ramp that is 18 feet wide and 52 feet long. It provides access to the Arkansas River, which is the body of water that it services.

The AHRA allows a variety of watercraft on the Arkansas River, including rafts, kayaks, canoes, stand-up paddleboards, and motorized boats. However, there are regulations in place to ensure the safety of all users, such as restrictions on the size of motorized boats and mandatory life jacket requirements.

Overall, it appears that the boat ramp at AHRA - Ruby Mountain Rec Sits (assuming it is the same as the one at Ruby Mountain Recreation Site) is a well-maintained and accessible ramp that provides access to a popular recreational river in Colorado.