The Saginaw Bay boat ramp is located on the Au Gres River in Arenac County, Michigan. It provides access to Saginaw Bay, which is part of Lake Huron. The coordinates of the ramp are latitude: 44.02681732, and longitude: -83.67915344.

According to the latest information available, the Saginaw Bay boat ramp is a concrete ramp that is 14 feet wide. It is suitable for launching small to medium-sized boats, including fishing boats, pleasure boats, and pontoon boats. There is also a small parking area adjacent to the ramp that can accommodate vehicles and boat trailers.

The Saginaw Bay boat ramp is a popular spot for anglers, as Saginaw Bay is known for its excellent walleye fishing. It is also used by recreational boaters who enjoy cruising the bay and exploring its many islands and coves.

In summary, the Saginaw Bay boat ramp is a 14-foot-wide concrete ramp located on the Au Gres River in Arenac County, Michigan. It provides access to Saginaw Bay, which is part of Lake Huron, and is suitable for launching small to medium-sized boats, including fishing boats, pleasure boats, and pontoon boats.