Post Office JumpsLogo Design Contest

Post Office Jumps is an internationally recognized dirt jumping spot (think bmx or mountain bikes) Our jumps have been featured in many films and photos, but they were recently bulldozed. We are seeking a new place for the jumps and this logo is for the website that is rallying that support. Our website gets about 5,000 unique visitors each day from around the world as people write in to show their support. We are looking for a logo that conveys the uniqueness of the jumps and the "cool" factor.

no bright, pastel, or jewel tones.Darker colors are likely better.

http://www.postofficejumps.org/. See the "Gallery" on this page for photos of the athletes and the jumps.
Also check out our instagram https://instagram.com/postofficejumps/
We are using Google Font "Special Elite" on our website. Some ideas include a logo that somehow uses the shape of the jump(s), a play on the whole "post office" them, the silhouette of riders in the air. (not detailed as we want to keep simple)
A general idea of what type of imagery works with this audience is here: https://www.google.com/search?q=bmx+logos&rlz=1C1CHFX_enUS605US605&espv=2&biw=1920&bih=936&source=lnms&tbm=isch&sa=X&ei=bD7xVI3OH5ftoATfpYHIDA&ved=0CAYQ_AUoAQ#imgdii=_