Gentle used,in good condition. Sunset Hill Stoneware Earthfire Institute Wildlife Sanctuary & Retreat Center. Earthfire Institute Wildlife Sanctuary & Retreat Center. The mug is made by Deneen Pottery, a company known for producing handcrafted stoneware mugs for various organizations and businesses.  The Earthfire Institute is a wildlife sanctuary and retreat center located in Idaho. The logo on the mug depicts a wolf howling at the moon, with the words "Earthfire Institute Wildlife Sanctuary & Retreat Center" encircling it. Deneen Pottery mugs are individually handcrafted and are often sold as custom merchandise for parks, businesses, and other organizations.