I purchased this as part of the Dry Ravine bundle, and the overall collection is superb, if somewhat overwhelming. I'll be using these as part of an extreme badlands-type environment my Party will be adventuring in for 1 or 2 months, so it's perfect for the numerous encounters I have planned. I really like that this isn't just a set of tunnels through a plateau or mesa, but also contains various depths or levels for the tunnels, which intersect at various points, providing high ground for potential ambushers, for example. Also, the topography, which could easily get lost in an indistinct, sandy/rocky environment, is very easy to read. Very well thought out with great artwork, and a great addition to Heroic Maps' excellent products.
[5 of 5 Stars!]