Great news, Roberts Pass has now been extended East bound at Wilson road (N 188.8.131.52 W184.108.40.206) for another 1.9 miles. At this time of my posting (11-10-2011) the trail has had the crushed stone laid and will be paved either sometime soon or at least by spring 2012. This extension goes straight through to West Jefferson/Lilly chapel roads (N 220.127.116.11 W18.104.22.168), then crosses the road and continues East Bound all the way, that's right, all the way to the Big Darby Bridge parking area at the intersection of Alkire Road and Gardner Road. Here are the coordinates for the Trail Head parking lot of which you can park at Big Darby, N22.214.171.124 W126.96.36.199. In case you need to ask someone what this area is called by name it is called Battelle-Darby Creek Metro Park area. NOTE: Once you park, get your bike, turn left out of the parking lot, then go straight ahead and cross over the bridge. The bridge will have a new dedicated bike path on the South side of the bridge, stay on that -- once over the bridge the trail will take a sharp left turn on to the trail.
At this point you are approximately 12 miles or so form London, Ohio. Once the trail ends at the edge of town in London, do not be discouraged -- once you reach London, turn left and ride about 600 feet or so to st.rt. 665, then turn right. Stay straight on 665 all the way until you dead end on st. rt. 38 (Washington London Road). Then turn right and ride approximately 2/10 of a mile and you will see the trail continue (Prairie Grass Trail N188.8.131.52 W184.108.40.206) on your left. This is the continuance of the Ohio/Erie trail. You may like this comment, in that in about 500 down this trail, if you need to use the cleanest bathroom in town, you will find it just West of the picnic tables you will soon see (it's located at N220.127.116.11 W18.104.22.168). You're welcome! It's located at a senior center, and boy do those seniors know how to keep a clean potty.
Down the path 10-miles will be a town called south Charles (I believe). Remember when you get into South Charles the trail will seem to fizzle out, it does not really, you just need to remember the rail used to go straight, so just curve your way through the outskirts of this little town and keep in mind that the trail will again pick back up on your left very very soon.
What's nice is, this trail will take you all the way to Xenia Station through and to Cincinnati's river front!
If you need further assistance you may write me at firstname.lastname@example.org and I will be happy to assist if I can. In your subject line Please Put Ohio Erie trail so it does not go into my trash folder.