IDPA@NVSA North Valley Shooters Association holds an IDPA match on the third Sunday of every month. Registration typically begins at 8:00 A.M., with shooting starting at 9:00 A.M. Directions.Take Hwy 99 to Gridley, Ca (approx 50 miles north of Sacramento), turn east on East Gridley Road (southern-most stoplight). Follow E. Gridley Rd. approx 4 miles. Cross river, look for large white IDPA “target” just past river, turn right. If gate is locked, wait, we’ll have someone out shortly. Match Fees are $10.00 for First-Timers, $15.00 for SDPS members, $25.00 for non-members, and $5.00 for juniors (ages 12 to 20; must be accompanied by guardian).