Thanks everybody for the responses.
Yes, it was a fantastic trip. I had two cameras along, a Calumet 4x5" view camera for B&W (Tri-X probably), and a Pentax shooting Kodachromes, some 22 rolls of 36 exposure. Most were the familiar ASA 25, and a few were the new ASA 64.
I encountered two problems with the K-chromes. When I switched from the 25 speed to the 64 speed I forgot to reset the meter, so half a roll was overexposed.
And then, when I got home, I made the mistake of sending all 22 rolls to the nearest Kodak processing plant on the same day. So that day happened to be when something went wrong in the processing, leaving about half the images on every roll with some strange doo smeared on them randomly. Kodak had me send them the worst ones and they cleaned them up as well as they could, and sent me free replacement film. Fortunately, most of the best pictures came out OK. After that, I never sent more than two rolls to any one plant on any one day.
I'll add a few more that might have historic interest to this thread within a few days, including Myvatn and a whaling station.
Eric