Inspired by the Dave Holmes Bradfield Boundary I've put together a largely off-road Sheffield Boundary. I finally got to ride it all today in 8 hours (including stops). Hannah tried to show me how to 'Strava' it but I'm afraid I'm too thick to understand such stuff. Instead find attached a (poorly!) annotated map to give a rough idea of the route. I started at Blackburn Meadows (the lowest point in Sheffield) and travelled clockwise. Highlights include a ring ouzel in the Burbage valley and the egg, chips and beans at Langsett cafe. Low lights include an abandoned fridge near Rother Valley and abuse from some 'yoofs' in Brinsworth!
If there's any interest I'd be happy to supply a fully annotated route map or even organise a repeat.