1. Maura ran up Old Peter's road that night, [amonst a billion possibilities]
1. that the dirt road there had been traveled on and footprints were not distinguishable, many cars had driven down the road before she went up. No snow powder, at least not nearby.
Lets say she thought that would take her to Bartlett.
Scenario 1: What if she got pretty far up Old Peters road, its pitch black. I don't know the road at all, but for some Youtube videos. In some places, it looks like, without the benefit of sufficient lighting, it looks like someone could make a serious misstep and become seriously injured by going off the side of the road. Now if that happened, the only thing that would solve the case is a serious search over these cliffs. A helicopter fly by wouldn't be enough, if there is an area there too dangerous for law enforcement to take their dogs and search.
If its pitch black at night, or even inadequately moonlighted, which way do you go?
Scenario 2: What if she got pretty far up the road and was trespassing and didn't know it. Someone goes out with their gun, the rest is history.