Topographical map source?
In the pre-planning/dreaming/is-it-possible stage of an adventure trip in the western US from the coast (southest BC) over to about maybe as far as N. Dakota along the top of the country and then sout...
Forum Discussion
My guess is the OP isn't interested in detailed level of topographic maps, the ones with trails and streams and forest service roads. Grades, curves, and drop offs on major highways through the mountains are more the focus.
Delourme and Benchmark books might be more detailed than needed, though I do like them.
I have bought folding 'sports' or 'adventure' maps locally in various the Western states.
One clue that is present even on official state highway maps (do they print such things anymore?) - National Forests and National Parks are shown in a distinct color. Those almost always are in the mountains. At a first approximation, if a road passes through such an area, it is mountainous. If it passes between two such areas, it is likely to be in a valley between two ranges. Another clue - scenic route designation.
I'd suggest studying online sources such as GM with terrain to identify areas of interest/concern. Then look at the map rack in stores along the route (yes, even groceries and gas stations), to see which gives the most information on those areas of interest.
Delourme and Benchmark books might be more detailed than needed, though I do like them.
I have bought folding 'sports' or 'adventure' maps locally in various the Western states.
One clue that is present even on official state highway maps (do they print such things anymore?) - National Forests and National Parks are shown in a distinct color. Those almost always are in the mountains. At a first approximation, if a road passes through such an area, it is mountainous. If it passes between two such areas, it is likely to be in a valley between two ranges. Another clue - scenic route designation.
I'd suggest studying online sources such as GM with terrain to identify areas of interest/concern. Then look at the map rack in stores along the route (yes, even groceries and gas stations), to see which gives the most information on those areas of interest.
