According to the latest available information, the boat ramp named County Road 450 14341-14467 in Umatilla, Florida, is a concrete boat ramp. It is approximately 20 feet wide, providing ample space for boats to launch and retrieve. The ramp services the nearby Lake Yale, which is a freshwater lake with an area of approximately 4,000 acres.

Boats of different sizes and types are permitted on Lake Yale, including fishing boats, pontoon boats, canoes, kayaks, and other types of recreational watercraft. However, there are some restrictions on the lake, such as a 30 mph speed limit in some areas. It is important to note that boaters are required to have a valid Florida Boating Safety Education ID Card to operate a powered boat on Florida waters if they were born on or after January 1, 1988.

In summary, County Road 450 14341-14467 boat ramp in Umatilla, Florida, is a concrete boat ramp approximately 20 feet wide that services Lake Yale, a freshwater lake that permits different types of boats and watercraft.