I have done one going up past Eugene (Halsey, OR) and back on I-5, not too bad for all interstate, and I've gone to Portland, then Pendleton, then Boise for 1000 and then home for another 500 the next day for a combined saddlesore/bunburner. Again, not too bad until you get to Jordan Valley, then it sucks until you are way past Reno. John Flowers (amarider) has a route of 1000 miles that goes to Fernley then south to Death Valley and then back north, I'm not sure of the exact route but the general idea of it looks good.
No longer president, River City Beemers
2009 R1200RT - Silver
"Shadowboxing the apocalypse, wandering the land"