Just launched (and some walks won't be available until mid May), they say:
https://www.mining-landscapes.org/
This virtual museum explores the rich but often hidden local landscape legacies of coal mining across the Scottish midland coalfield, ranging from Fife to Ayrshire, through a series of cycling and walking routes created by local communities commemorating their industrial history and heritage, and celebrating their sense of place and identity.
https://www.mining-landscapes.org/