Blackjack Access is a 212-acre Missouri Department of Conservation area on the Sac River near Collins offering primitive camping with individual campsites, a concrete boat ramp, parking lot, and privy facilities.

The site provides access to the Sac River for fishing and paddling, with camping limited to 14 consecutive days in any 30-day period. Located about 4 miles west of Collins via Highway 54, then Route J south and Route W west.