Sounds like a great trip. This summer we rode through Utah, Wyoming, Idaho, and Colorado. I took my 6x4.5 Bronica, and shot 10 rolls of film. I'm not developing color myself yet, so I sent them off to be developed. The C41 (Ektar) came out great, I'm waiting to find out on the E6--Velvia 50, but I'm optimistic. I brought several backs and did a number of cross emulsion bracketing. So I'm curious to compare Ektar and Velvia and Fomapan 100. (I didn't take that much black and white, so it will mostly be the Ektar vs. Velvia)