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Play the Big Dig Scavenger Hunt

Big DigNow through April 15, the Big Dig consists of a region-wide scavenger hunt to find the mascot, Corey, The Compostable Apple Core.

Corey and his secret codes will appear on posters at 45 retail locations in Seattle, King and Snohomish counties, detailed on a map at Those who find Corey and enter the code will instantly win a free bag of compost and a chance to participate in one of three Big Dig events. Compost coupons will also be available at and participating retailers.

Three Big Dig events will be open to the public. At each event, participants will dig through a 15-yard pile of compost for over $1,000 in buried treasures donated by Fred Meyer and McLendon Hardware, including a $500 shopping spree:

  • Saturday, March 30: Fred Meyer, Lynnwood (4615 196th Street SW), 12 p.m., featuring Ladd Smith, Co-Owner of In Harmony Sustainable Landscapes
  • Sunday, April 7: Fred Meyer, Ballard (915 NW 45th Street), 11 a.m., featuring Ciscoe Morris
  • Sunday, April 14: McLendon Hardware, Renton (440 Rainier Ave. S.) – 11 a.m., featuring Ciscoe Morris

Cedar Grove Compost will donate more than 60 yards of compost used at the Big Dig events to community gardens, part of their ongoing commitment to make generous compost donations to community gardens and organizations throughout the Puget Sound.

The Big Dig is part of Compost Days. Now through April 15, get deep discounts on food scrap containers and compost at Compost Days retailers. 

For more information on Compost Days, visit