Via Paleofuture:
The 1895 map rated each road for its condition: Good (G), Fair (F), Poor (P), and Very Poor (VP), as well as rating its grade: Level (L), Rolling (R), Hilly (H), and Mountainous (M). Even a cursory glance at the map below shows that a good, flat road was rare — especially outside of California’s urban areas.
Nice map! Where did you find it?
Paleofuture–a really great blog: http://paleofuture.gizmodo.com/before-the-age-of-automobiles-cyclists-fought-for-bett-1450090817.