Northeast Kingdom Railroads

Hiya, my apologies if this isn't the place for it but does anyone know any cool old rail infrastructure to explore in the Northeast Kingdom of Vermont, specifically around the Greensboro-St. Johnsbury area? I'm going to be spending a week up there on vacation and would love to have a reason to do some exploring.
Many thanks,
Joe

Hey! You’re gonna love it up there! If you have time, check out the Lamoille Valley Rail Trail—it’s perfect for biking or hiking, and you’ll spot some cool old rail structures. The views are amazing, especially in the fall! Also, swing by the St. Johnsbury train station; it’s got a bit of history and a nice vibe.