Based on the information available online, the boat ramp named State Highway 141 Mesa County in Colorado is a concrete boat ramp. It is said to be around 12 feet wide, which is ample enough for most small to medium-sized boats. It is situated on the Colorado River, which is a popular destination for fishing, kayaking, and other water sports. The Colorado River is known for its scenic beauty and is a popular place for recreational boating.

According to the Colorado Parks and Wildlife website, motorized watercraft are allowed on the Colorado River. However, there are some restrictions in place, such as a speed limit of 5 mph within 150 feet of shore, and a no-wake zone within 100 feet of shore. Additionally, boats must have proper safety equipment, such as life jackets and fire extinguishers, on board.

It is important to note that information on boat ramps and water regulations can change frequently. Therefore, it is always best to check with local authorities or the Colorado Parks and Wildlife website for the latest information before heading out onto the water.