The online maps like Google and Microsoft have satellite and (and increasingly, birds-eye aerial images) to go with the regular road maps. With one click you can get a satellite image (in populated areas, they can show you stuff in your backyard). However, even in the remoter areas where the resolutions are much further away, you can still get a picture that gives you a nice topographical picture to show you what that simple road map doesn't. But even the road map part can show you a lot. Zooming in real close often makes it very clear just how remote a road is (something the Rand McNally's don't show with their greater scale). The one the Kims were on has so many curves and doglegs that it's obvious that this is very mountainous terrain.
The online maps like Google and Microsoft have satellite and (and increasingly, birds-eye aerial
The one thing I like is when you overlay the aerial view with the road map, like with forest service roads. It is kind of amusing when they don't quite match up.
This jaunt into the foothills went along HWY-6 (W into the foothills), and I had the appropriate topo-map segment facingt me in the passanger seat besides me, so as to know what the road was going to do as I hurtled towards that mountain-side obscured switchback (you know the one, with the 1000' foot tumble down into the ravine only feet from the edge of the road) at 100+ MPH.
With the topo-map I was confident that I could take the mountain road curve beginning from far outside, cut into the inside and drift to the outside (oncoming) lane with confidence that if one of the remote chance occurances of an oncoming vehicle would present itself: I'd be able to maneuaver back into my lane. Its not recommended to being in such situation only to find oneself in a 35% downgrade. That bad.
I can proudly say this: it has been said by somebody who's wet my seat, "You've not been in the mountains until you've been driven through them by RayGun - and at least 1000' feet of solid air 4' from your passanger door is all that is holding you up".