Based on the latest information available online, the Tatman Run Boat Launch is located in Pennsylvania, specifically in Bedford County, near the town of Everett. It is a public boat ramp that provides access to the Raystown Branch of the Juniata River, which is a popular fishing and boating destination in the area.

The Tatman Run Boat Launch is a concrete boat ramp that has a width of approximately 20 feet, which should be wide enough to accommodate most boats. There is also a small parking area nearby that can accommodate about 10 vehicles.

As for the types of boats that are permitted on the Raystown Branch of the Juniata River, it is primarily used for recreational boating, fishing, and kayaking. Motorized boats are allowed on the river, but there are some restrictions in place to ensure the safety of all users. For example, boats are not allowed to exceed a certain speed limit, and there are designated no-wake zones in certain areas to prevent damage to the shoreline.

In summary, the Tatman Run Boat Launch is a public concrete boat ramp located in Bedford County, Pennsylvania, that provides access to the Raystown Branch of the Juniata River. It is suitable for most types of boats, and is primarily used for recreational boating, fishing, and kayaking.