WPC074-03 Penobscot Bay, Maine, 3rd Edition.Maptech "Flip-Fold" charts are easy-to-use. Maptech WaterProof Charts are printed on high-quality, waterproof, synthetic paper. Chart images are crisp and easy-to-read.Features:GPS waypointsCourses and distancesRamp locationsSize: 24" x 36", 12” x 6" foldedScale 1:47,000Insets for North Haven, Rockland, Camden, and Carvers Harbor, Stonington, Fox Islands Thorofare, and The Reach