Here's a link to a listing of all the ramps maintained by KDFWR:
http://fw.ky.gov/waterbody.aspx

Individual listings include longitude and latitude. Here's the one for High Bridge:
http://fw.ky.gov/AccessSiteDetail.aspx?ASID=276

Good luck, and please come back and let us know how you like it. HIgh Bridge (Palisades) is on my short list of Kentucky River spots to explore.