Long Runs
The Town Lake Loop
The loop, is a mostly dirt route that goes along the Colorado river through downtown Austin. It is the most popular route by far in Austin, and most long run groups at least do a section of their run on it.
LinkMt Bonnell
You can run from downtown to the top of Mt Bonnell, and back. It is a great route if you are up for hills. Overall the route will take about 10 miles, and will end you back on the Town Lake Loop.
LinkTracks
Austin High School
The High School track is open to the public and is a great place to train.
Location: 1715 W Cesar Chavez St, Austin, TX 78703
Yellow Jacket Stadium
A High School track in the East side of Austin.
Location: 3101-3189 Hargrave St, Austin, TX 78702
Trails
Greenbelt
The greenbelt is a long trail that starts the the south west corner of Austin, it goes for around 10 miles out and back. It is very well maintained and highly trafficed on the weekends.
Location: There are multiple entry points, parking at Barton Springs Pool and Barton Creek Greenbelt Trailhead are the easiest.