From their website:
HexPack: Lakes and Rivers is a flexible map system aid for the BattleTech game system. Designed for use in conjunction with other pre-printed mapsheets (such as those from the Introductory Box Set), the system’s flexibility allows for easy modifications to existing mapsheets, increasing the enjoyment of a given scenario as players quickly change the terrain to bring new excitement to each game they play. A booklet contains two ready-to-play scenarios, which include expanded play options.
- One 18” x 22” full-color gameboard-quality mapsheet, with a different map printed on either side.
- Four punch-out-and-ready-to-play gameboard-quality HexTile sheets.
- Sixteen page booklet