Essentially this is a GIGO issue. If you ask for a route between any two places in the UK, or Germany, or France, or any other country with a strong OSM communi

Essentially this is a GIGO issue. If you ask for a route between any two places in the UK, or Germany, or France, or any other country with a strong OSM community, OSM will do fine - in fact, by bike or on foot, you'll get a better route than Google would give you. We don't have as strong a community in the US. In SF, NYC etc. the data's pretty good. In rural Nevada it... isn't. It's still raw untouched TIGER (US census data) in most places. So: hell yes, poke around and fix it. We would love OSM to be as good in the US as it is in Europe. And if anything isn't clear, pop in here or on IRC and ask. We're a friendly community.