This is the trail that runs along the western (or northwestern) side of the Hutch. It has several road crossings and has some narrow spots. For the most part, it is single-track. I map it as almost exactly 3 miles, essentially the western border of the Hutch. MAP This is ending it at Saxon Woods Golf Course (at which point you pick up the Saxon Woods Trail) and the northern point of the Twin Lakes Trails.
Unfortunately, except at the ends, there’s no way to get on this trail from a place where one can park a car.
The trickiest part is around Pinebrook Boulevard in New Rochelle. When heading north, there is a very steep downhill south of Pinebrook (going up heading south, incl. during Paine-to-Pain) and a technical stretch to the north of Pinebrook before Weaver Street, by which I mean quick turns and ups-and-downs.