I'm glad some people could use use the map. I was originally going to only show around the campground, but settled on both campground and Leadore because no one has a clue where whatever happened, well, happened.
My logic was if something happened on the way to or from Leadore or while actually in Leadore, the likely hiding spots would be centered around Leadore, while if something happened in or near camp, then I don't see why they would have wasted 30 minutes to drive to the main roads when there would have been far "safer" options in terms of being spotted.
I've been playing around on Google Earth for a while and see a ton of what appear to be trails rather than actual roads. Some of them travel well beyond the 10 mile radius and appear large enough to drive a vehicle on. I can only get a basic idea of terrain/elevation on Earth though. Many go well outside the 2.5-3 mile LE coordinated searches and have plenty of trees nearby for concealing evidence.
There's also several large areas that appear to have been logged. I see what looks to be logs haphazardly stacked around the edges and tops laying on the ground. Again outside of the original search area, but well within the 10 mile radius. If it looks even remotely close to the Earth view, I see some potentially great hiding places. Evergreen tops laying all over the place would be nearly impenetrable and any new undergrowth would rapidly take over the following spring filling in bare spots.
If I was a betting woman, I'd probably put half my chips on 105/Big Timbercreek Rd being the route taken heading south. From camp, it would look like they were heading to the store to IR and GGP. It looks like there is enough tree cover to prevent the vehicle from being seen and far enough away to at least dampen the noise. It also looks like fairly open terrain, so driving wouldn't be too difficult and there are plenty of trees just off the road for camouflage. It also appears to go way outside of the 10 mile radius. I think it would have been pretty easy to see coming in to camp as well and it's likely if they weren't familiar with the area, they would have had a map or GPS on their phones showing that road.