February 25, 2016
The Anthills are home to some of the most technical and rugged trails in Houston and as such are generally much less trafficked. The relatively short 5 mile out and 5 mile back trail can be done in sets of 2-5 depending on how much workout you'd like to get.
The first sections nearest Beltway 8 are by far the gnarliest. There is a lot of fun to be had in these sections as there is a high road path that goes through the woods and a low road that hugs the bayou as well as some really steep short connectors between the two. After the first two bridge crossings the path gets more mellow and eventually turns into a wide single and double track in the middle of open fields.
I would still classify the Anthills as more of a locals hidden gem, it's much less accessible than other trails like Memorial and Cypresswood because its on the opposite side of the bayou from the paved trails. Even in the middle of the day Saturday with nice weather there are usually only a dozen or so bikers and hikers on the trails at one time.
The recent memorial day flooding in 2015 did quite a bit of damage to the trails but they are mostly clean now though the additional erosion has made several of the low road sections much more difficult. Unless you are a very accomplished rider you'll probably need to walk a few of these steeper low road features.