This is not an out an back. the map clearly shows you can do the loop. But it is very short. We did all three trails and still only logged a few miles. Not sure if I'd really recommend Vista Knoll Trail.. but you should definitely take Ridgeline Trail (out and back) to the end to see the view from the kiosk there! (forgot the actual name of the kiosk) Ridgeline can be a little challenging but definitely worth it!
These trails were a pleasant surprise! It was about 85% shaded trails with some slight elevation and interesting rock formations. The only wildlife I saw/heard were hundreds of cicadas. I did see several areas of fresh hog rooting(s), but heard nary any oink. This was well worth the drive from Georgetown.
This 0.5 mile loop is only worth the trip if you also hike the Cactus Rock (1.5 mile) and the Ridgeline (1.4 mile) as all three come together at one point. The Ridgeline is probably the most technical of the three but all provide good canopy and views. It's a nice hike. We ended up hiking 3.78 miles in total in just over 1 hr and 50 min. No pets are allowed.
We have a home being built in the Highlands at Mayfield Ranch and heard there were trails around the sub division. We just scratched the surface this morning. It's a flat and easy hike and the trails led us to the Williamson County Regional Park that is absolutely excellent and well maintained. There is a disc golf course that I've been wanting to do and will do so tomorrow morning at it and a splash pad for all to cool off. We took our little pooch and he got tuckered out so we had to cut it short but will return tomorrow to explore more of the many trails. I'm sure I will frequent this often since it's gonna be in my back yard. :)
We ended up hiking this and most of the Ridgeline trail as well. In all, we trekked about 3.2 miles. We hit the trail at 7:30am and only met one other hiker. We took our dog as we weren't not aware that pets weren't allowed until we were there. We ended up leashing him and taking him along with no issues. The views were nice and the trail well maintained. The slight elevations were easy for all including our small dog. During this time, it's best to get out before it gets super hot even though the majority of this trail is shaded. Will return.