Dan, I think you are missing my math. I get to Spearfish after a week in a Forest Service campground in Minnesota, no sewer. Do laundry in Spearfish. Laundry after a week is fairly reasonable. We leave Spearfish and spend 7 days in Gillette, no sewer. Like I said, we can go 7 or 8 days without dumping, but I do like clean laundry after a week. I figure the laundromats in Gillette will be pretty busy with so many people, but maybe I am wrong. Leave Gillette and spend the next 5 days at a State Recreation site in South Dakota. No sewer. Head back to Iowa, maybe stop at a full size campground, maybe not. About three weeks away from home, two nights in full hookups after the first week, everything else in electric only.
Still curious about the cost of a pump out in Gillette.