This is what I've come up with based on the new Google Maps images.
View attachment 423521
This is Miura-guchi from where Pattie set off that morning. The red dots are the original line of Route 733, hugging close to the mountainside, but the red dots ringed in yellow are a part of the road that appears to have been bypassed by the road marked in blue. The trail is marked in green. It looks like the red/yellow part of the road is now only used by locals who live on that part of the road, and importantly, by pilgrims who have to walk down that part of the road to reach the trailhead. The bypass appears to have been there for a long time; it was already there in the images from 2013. (
Link 2023 /
Link 2013) If you take the bypass you go
under the footbridge that leads to the trailhead, and there are two road bridges that lead into the forest. (
Link) I suspect this area could get quite confusing for someone who had never been there before, and I can see why people might have trouble finding the entrance to the bridge and trailhead.
Could a person get so lost that they would disappear the way Pattie has? I doubt it, but who knows.
View attachment 423522
If we assume for the moment that Pattie did make it to the trailhead and did make it over the mountain, the winding roads around Nishinaka, where Pattie would have left the mountain trail and come back out onto the road, are also confusing. The blue dots mark the route through the trees, the red dots mark the road. At Point 1 you leave the mountain trail past an old house, coming out onto the winding mountain road. (
Link) You travel down the road some distance before coming to a sign at Point 2, where you leave the road again down what appears to be quite a steep slope. (
Link) You then travel through the forest until you reach Point 3, where you're back on the road again. (
Link) You then walk up the road a short distance before coming to these stone steps leading back into the forest at Point 4. (
Link) From there you walk through the forest before coming out for the final time onto Route 425 at Point 5 near Nishinaka. (
Link)
That mountain road, and having to find so many entrances and exits through the trees, looks like it could get pretty confusing. And if foul play did occur, IMO it's somewhere that a person could be abducted from very easily.