Spring races are popping up left and right and some of us are already signed up for summer events, so the timing of the 26th annual McDonald Forest 50K (aka “Mac 50”) is a good one to squeeze in. This year’s event will be held in Corvallis on Saturday, May 7, 2022. The Mac 50 means business, with around 7,000 of feet of gain on over 20 miles of beautiful singletrack and about 10 miles…