The Tower by the Sunken Wood

From publisher blurb: Guarding the dangerous marsh A printable battlemap compatible with any RPG/Dungeon-Crawl game. Use as a standalone gameboard, or combine with any same-scale tileset. Contents: A 30x50 battlemap depicting a wizard's tower near the edge of an ancient marsh or swamp. Includes interiors, cellar, roof overlay and ruined version.