Paizo makes a lot of flip-mats for wilderness encounters: there's Bigger Forest, Winter Forest, Woodlands, a Forest Multi-Pack, and probably more. The one I'm reviewing here is simply Forest, and there's not a lot to say about it. One side presents a crossroads, with paths heading north, south, east, and west, with trees in the four corners ("a woodland environment perfect for a scenic ambush"). It could work if the PCs are on a well-travelled path through a dense forest. The other side features a more complex arrangement of paths, with little features such as signposts, a campfire, and (most notably) a large rift in the ground. I prefer less distinctive features for generic maps so that they're more reusable ("oh, there's that rift again!"). The packaging says this is a "stream winding through woods near a druidic circle", but they obviously got this map confused with another one. In any event, it's a reasonably well-done flip-mat--nothing exciting or special, but it'll get the job done when you need a grid for a quick forest encounter.
As with all Paizo flip-mats, it takes dry erase, wet erase, and even permanent markers, and cleans up nicely afterwards.