The Juniata River Boat launch project was a combined effort between Mifflin County, McVeytown Borough, and Bratton and Union townships. Opened in 2017 it provides access to the river from the McVeytown area. It is one of at least 3 new launches on the Juniata River, the other 2 I'm thinking of being in Huntingdon County. There should be plenty of parking available right here but, if needed, there is another lot across the road and around the turn.
Remember to bring your own pen, and please be careful to return the cache as found.