Like running? Want to get away from the treadmill and step outside?

Renton-based runners’ shop The Balanced Athlete will host a series of trail runs on Squak Mountain this Saturday April 11.

But don’t expect a beginner-level 5K. The difficulty level of the series, sanctioned by USA Track & Field, starts with a 12K (nearly 7 and a half miles) and ramps up to a half-marathon, full marathon and 20K (more than 31 miles). All the courses will start and finish at the Squak Mountain Trailhead at 21492 S.E. May Valley Road.

Registration prices, times and more information can be found at the Evergreen Trail Runs website.