Turns out, it was only 1.77 miles—but back then it felt like 177 miles.
Map your own run by entering your starting location, then clicking and dragging as you see fit. It's really that easy. And you can search for runs, too. They'll compile a list of any maps created by other runners in your area.
Not a runner? MapMyFitness, Inc. owns the website, and they've created a few more just like it: MapMyRide, MapMyWalk, MapMyTri (for triathletes), MapMyMountain (for skiers and snowboarders) and MapMyHike. each of which, according to the company, is an "interactive social network that allows people to enjoy and share their workouts.