JonathanL from East Cobb, GA on 6/7/2016 1:59:33 PM:
First, the Amtrak station is about 30 minutes drive from the Silver Comet Trailhead at Mavell Rd. You will, however, have issues because you cannot bring a bike on board at Anniston as they don't have baggage handling service at Anniston at this time. SO, your bike would have to fold down to be of carry-on size. Unfortunately, rail service WITH your bike is not feasible to/from Anniston. You could, however, do what I did and park your vehicle in Anniston and then ride Amtrak back the day or 2 before your ride.
Second, the trail is flat as it was built on a railbed. It does have slight (very slight) inclines and declines but nothing of note. There is, however, one VERY notable exception. The section from Grady Road to the Cedartown Depot (roughly 5-6 miles long) is very hilly. When you traverse this section, pay very close attention to the signs and markings on the trail. There is one downhill section that has a sharp curve at the end that will catch you off-guard if you are not careful.