Based on the latest information available, Jack's Creek Boat Ramp is a concrete boat ramp located in Murray County, Georgia. It is approximately 30 feet wide, which is wide enough to accommodate most boats.

This boat ramp provides access to the Jacks River, a scenic river that runs through the Cohutta Wilderness Area in the Chattahoochee National Forest. The Jacks River is a popular destination for fishing, kayaking, canoeing, and other recreational activities.

As for the types of craft permitted on the water, the Jacks River is designated as a "Wilderness River," which means that motorized boats are not allowed. Only non-motorized watercraft such as canoes, kayaks, and rafts are permitted on the river.

Overall, Jack's Creek Boat Ramp provides convenient access to a beautiful and pristine river that is ideal for outdoor enthusiasts looking for a peaceful and scenic adventure.