This map shows (in blue) places where Google street view is available.
Three excerpts from Robert Macfarlane's The Old Ways: A Journey on Foot:
"...once you begin to notice them, you see that the landscape is still webbed with paths and footways... pilgrim paths, green roads, drove roads, corpse roads, trods, leys, dykes, drongs, sarns, snickets - say the names of the paths out loud and at speed and they become a poem or rite - holloways, bostles, shutes, driftways, lichways, ridings, halterpaths, cartways, carneys, causeways, herepaths."
sarn - (Welsh) a causeway
snicket - A narrow passage or alley (Northern England). Synonyms: ginnel, twitchel.
lichway - path by which the dead are carried to the grave
drove road/droveway - road or track along which livestock are (or historically were) regularly driven