by Timothy Rutt
The 25th annual Angeles Crest 100 Mile Endurance Run takes place starting Sat., July 21 in Wrightwood and ending Sun., July 22 at Loma Alta Park in Altadena.
In between, runners will cover a 100 mile winding path along the mountains and trails in a race that, for most finishers, will take over 24 hours.
The race's official website is here, including links to live data and Twitter feeds on race day.
Returning this year are two Altadena runners, Diana Treister and Marisol Martinez.