This is a superior map set for RPGs and miniature games in almost any scale. Although the tiles are supposed to lay out in a specific order, I have found that the maps are really geomorphic and can thus be laid out in almost any fashion.
I have been using the maps for skirmish wargaming in 20MM (1/72 scale), with only minor adjustments.
I have actually bought all the map packs and am heartily satisfied!
This is an excellent product for those gamers want either desert or "Martian" terrain. There's lots of variet. Having both rectangles and hexagons overprinted to aid movement is nice. Other sets are availaible with this series, You'll want this one and the others in the set. Bravo to Talisman. This is a nice line of products!