There is a feature on the main greenbelt trail called the elephant butt.
Image from www.austinbike.com
That site is a great local MTB reasource. Check it out!
Ive had a mountain bike for a little more than two years. Over the last year I've started riding more seriously, and challenging myself more by committing to obstacles and discovering new trails.
Yesterday was the first time I was able to clear it. I ride a single speed 29er with a 32/18, so give me a little break.
Alot of the obstacles out there are hard because of the metal aspect. You have to believe in your bike's capabilities, your skill to pick a line, and your ability to commit and not hesitate.
When it happens, it feels fantastic.