Found this route on Ride With GPS. It is basically the southern long Eola Hills Winery route, with a few tweaks. Start from Monmouth City Park. Head west on Highway 194. I never did see an actual highway 194 sign. There are a couple short climbs and one lengthy climb, but none over 6% grade. This is a 7 mile stretch to Highway 223 or Kings Valley Highway. This 14 mile stretch has a couple 4-6% climbs, mainly just after Pedee and just before dropping into Kings Valley. Make sure to stop at Ritner Creek Covered Bridge at mile 20. There were several people sitting inside the bridge making it difficult to get a good photo. At mile 22.6 is the turn for Maxfield Creek Road. This is a 6.7 mile segment, the first 4 a very gradual climb. Today there was a south wind, resulting in cross-wind action on this road. The road comes out at Arlie Rd. Go right and continue for about 6 miles to Suver. This was another cross-wind section. Be careful crossing Highway 99W just before Suver. At mile 38 is the turn for Corvallis Rd. Make a left here. Enjoyed a nice tail wind on this part, all the way into Independence. There are a few short rollers on this section. Turn left on C Street (mile 46.3) and head west through town, which becomes Monmouth near Central High School. Finish via Main Street and Knox St.