Grant Pavillion in Jefferson Barracks Park, located just north of I-255 and west of the Mississippi River (Missouri side), near but east of I-55. From I-255, go north on Telegraph Road, which turns to Kingston Road as the road dog-legs to the right. Near Broadway Avenue, you will see the North Gate Entrance, so you turn right into the JB park and follow Gregg Road (to the right) to the Grant Pavillion.