According to the latest information available, the boat ramp named Highway 47 22430, Fort White in Florida is a concrete boat ramp. It is approximately 15 feet wide and services the Santa Fe River. This boat ramp allows access to small watercraft like canoes, kayaks, and Jon boats. It is important to note that motorized boats are not permitted on the Santa Fe River due to the shallow depth of the river and the presence of submerged obstacles. Overall, Highway 47 22430 boat ramp is a suitable access point for those looking to explore the Santa Fe River using non-motorized watercraft.