I’m pleased to see that Tom Fort’s book Downstream is now on Archive.org to borrow. He follows the course of the Trent in a punt, but first investigates in some detail the river’s moorland source and non-navigable upper reaches. The scan is bad, even by Archive.org standards, but it’s readable.

I gave a hardback copy to Stoke-on-Trent central reference library about a decade ago, but it seems it never made it to the shelves.