This huge gridded battle map of the Spiral of the Dark God was originally created for the 4th edition D&D adventure Essence of Evil
in issue #151 of Dungeon Magazine. In a single download you get the labeled DM & unlabeled Player's versions of the map, both sized at a massive 10127 x 6750 pixels. It's perfect for home printing or screen display. Purchase it now to help run the adventure or use it on its own and spice up your game night.
P.S. For a quick and easy tutorial on resizing digital battle maps for printing and use with miniatures, make sure to visit Schley's Tutorials