The clinics are held in the Action Pistol Range (AP Range) or Hunter Education Building. This range is directly behind the public range. 

As you enter the Unites Sportsmen range stay right, continue past the open field youll see on you left. Make the FIRST right possible. Park in the gravel lot as close to the bottom as necessary. Feel free to "double stack" the parking... basically pull forward so that someone can pull in behind you. There is plenty of room to leave, Dont worry.