This trail can be accessed from just north of the Williamson Valley Rd & Pioneer Parkway. Parking is limited at this time (Dec 2014), but there are plans for a larger parking area in the future.
Traveling west to east on this trail you'll encounter a short uphill section and then a very nice downhill with great line of sight. Be careful though, as this trail is very popular with hikers and equestrians.
Just near the end there is a short uphill section with multiple switchbacks. The trail ends at the intersection of some doubletrack. From here you can explore the entire Brownlow / Legacy Trail