I'm running OSM map data in my Montana, and when I need to pick my way around a planned track that didn't go through, I have trouble seeing the roads/trails, with all the rivers and streams that are displayed.
Here's an example-
On a sunny day, I find it very difficult to distinguish between the two. Does City Navigator show every little stream and creek, but still have the 2-tracks and bigger trails displayed? I am happy with OSM otherwise, but if I want to see waterways, I'll use a TOPO.
Any screenshots of CN out in the middle of Utah?