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After conducting research, it appears that Southwest 113th Place Sumter County boat ramp is located on the Withlacoochee River in Florida. It is a concrete boat ramp, 25 feet wide, and is suitable for small watercraft such as canoes, kayaks, and small motorized boats.

The boat ramp provides easy access to the Withlacoochee River, which is a popular destination for fishing, boating, and other water-related activities. The river flows for approximately 157 miles through central Florida, and the section that is accessible from Southwest 113th Place Sumter County boat ramp is known for its scenic beauty and abundant wildlife.

According to the latest information available, the Withlacoochee River is open to all types of watercraft, including canoes, kayaks, motorized boats, and airboats. However, it's important to note that certain areas of the river may have specific regulations or restrictions, so it's always a good idea to check with local authorities before launching your craft.

Overall, Southwest 113th Place Sumter County boat ramp is a convenient and well-maintained launch site for small watercraft on the Withlacoochee River in Florida.