The source is just up the road from us and many of our local places of beauty were built on the Thames.
http://thames.me.uk/0TST/t00630.htmThis link has some lovely accounts of Fred Thackers 1909 walk around many of these places.....scroll to bottom of link to change place names.....like the Rascally place that is Cricklade and....is there a better sight than a train chugging into Highworth from Swindon heights.
Know its not everyones taste but worth a gander if you like this kind of thing.