[outofsalt]

A pipeline to transport grain may not be as unfathomable as seems on the face of things Except it would still take a generation to get the environmental approvals and permits. The feds have been peeing on everyone's corn flakes since FDR!

[WVNan]

I can imagine vacuum rings inside a pipe line to pull grain along. I used to have a fantasy of elevated pipe lines to replace long haul trucks. With computers and conveyor belts to direct to delivery point warehouses. I still think it would work. At end point you have UPS or FedX.