Based on the available information, Canaday Boat Launch is a boat ramp located in Montana with coordinates of latitude 45.607786565000026 and longitude -111.57546245299994. It provides access to the Gallatin River, a popular destination for fishing and boating in the area.

The width of the Canaday Boat Launch is not specified in the available information, but it is likely to be a standard size for boat ramps in the area, which is typically around 8-10 feet wide. It is designed to accommodate a range of watercraft, from small boats and canoes to larger motorized boats and rafts.

According to the latest information available, the Gallatin River is a designated blue ribbon trout stream, and fishing is the most popular activity on the river. The river is also suitable for a range of watercraft, including kayaks, canoes, drift boats, rafts, and motorized boats with a maximum horsepower limit of 10hp.

Overall, Canaday Boat Launch is an important access point for boaters and anglers looking to explore the Gallatin River. While the width of the ramp may be standard, the flexibility in the type of watercraft allowed provides a variety of options for those looking to spend time on the water.