TORONTO, June 29, 2018 (GLOBE NEWSWIRE) -- Amarillo Gold Corporation (“Amarillo” or the “Company”) (TSX.V:AGC) today announces the entry into an agreement for sale of a perpetual 1.75% Net Smelter Return Royalty on the Mara Rosa gold project (the “Royalty Agreement”) to RG Royalties, LLC, a wholly-owned subsidiary of Royal Gold, Inc. (NASDAQ:RGLD) (“Royal Gold”), for USD $10.8 million (approximately CAD$14.4 million).