for those who may want to know..
Korean boards: 4 'quad-hill' boards - designed together to look Korean-like, but independently designed to have somewhat specific themes to each board including Spurs, Pocket, Ridge, Hill. Each board has hill-like terrain which is rugged, jagged, fairly devoid of vegitation. Each board can be used with any of the other boards in the system as well as with any ASL board (at least along one short and one long side). Although not as a primary design goal, all 4 may be simultaneously placed (long side) back to back and (one short side) side by side to form in effect a large, 4 board hill mass. In various positions, they can also form valleys and long ridges. Helpful too for non-Korean places like Italy, Balkans, PTO, etc.. There are no river boards, but a river board can be placed in-between them in order to maximize the number of happy faces out there