Mason Lake Camp 1052 E Mason Lake Drive W Grapeview, WA 98546 (360) 426-0737 masonlake@greendiamond.com RESERVE Guest Rated favorites email park bookmark park reviews write review PARK REVIEWS (0) All Reviews (0) Recommended (0) Not Recommended Filter Filter by: All Ratings A Ratings B Ratings C Ratings D Ratings F Ratings Number of reviews: 100 200 300 Results Per Page: 10 20 30 50 100 submit