I just had to chuckle when I read the review by the guy who was glad that the live railroad views were "buffered" by the trees! Ha ha! MY goodness! I was out there in the 97-degree heat Saturday, just THRILLED by the wide-open 5 miles of riding alongside the ex-B&O CSX Pittsburgh-Chicago main line! No less than 7 trains over my 3-hour ride! And I am THRILLED that at least one other person noticed that this trail WAS a railroad!... A very SIGNIFICANT railroad!... The Erie (and post-1960 Erie-Lackawanna) Hoboken-Chicago main line! E-L's New York-Chicago "Lake Cities" passenger train plied this route until it's pre-Amtrak demise in 1970. First, the mileposts... 3 of them. cast concrete "S220" and "S221", and cut stone "225" ("S" for Salamanca, NY). This railroad "zeroed out" its mile markers at its Hoboken origin, "JC" for Jersey City, "S" at Salamanca, and "M" at Marion, Ohio. These were originally different railroads, which eventually made up the through Erie Railroad system. Located at Milepost 219.9, that little depot at Rittman is a RARE... VERY rare... Erie classic, right down to the Erie station signs! Two classic, cast concrete whistleposts remain, as with the mile markers, BEAUTIFULLY restored and maintained! GREAT WORK, GUYS! Thank you so very much! Whistleposts, as the name implies, "WHISTLE" for the steam engines (and later, those hated DIESELS!), remain in place at MP 221.2 and at MP 224.2, just west of the relocated B&O freight depot at the Sterling crossing, where the Erie crossed CSX's former B&O main line, at grade, on diamonds. That's why the trail can't go straight through on the old railroad grade (Google "B&O Sterling Tower" for an image here). One unique CUT STONE milepost has been beautifully restored at MP 225. And our "most unlikely" historical remnant is that little METAL whistlepost at the former LOCATION of MP 222.0. This is an E-L "post concrete era" classic marker. (If you have a bicycle cyclometer, you can use MP220 at the east end of the trail, and MP225 near the western end of the trail, as reference points to locate all of these locations) One solitary relay case at the Rittman Main Street crossing is the only extant piece of electrical hardware on the trail. Finally, just a few interesting general observations: Is ATLANTIC Avenue, which the eastern "half" of the trail exits onto east of the Sterling crossing, short for "ATLANTIC & GREAT WESTERN", the 6-foot wide-guage founding railroad of its famed "West End?" Just south of the trail's western terminus in Creston, observe Wheeling & Lake Erie's "Creston West" interlocking, where the Erie crossed that main line, swinging southwestward over the W&LE, just beyond the tower and signal foundation remnants visible near the road crossing. The Erie was the southernmost of the three main line railroads crossing the main north-south street in Creston. And yes, this trail is definitely downgrade heading east. I coasted the whole way back down from MP 221 to the eastern trailhead. And, before or after your engaging "railroad" tour on this WONDERFUL trail, treat yourself to a tasty sub and a cool drink at the Subway in the Marathon gas station, just a block southwest of your western trail terminus in Creston, right where the Erie once crossed that main street in town!