Sunken lanes can be found all over the country but they are particularly deep and dank in West Dorset. My attention was drawn recently to several articles and essays about these "holloways" as they are sometimes called in that part of the world.
 In fact I was not familiar with that name although I have walked along several of the ones I saw mentioned. Some are roads, others no more than tracks, one is arguably a stream bed as much as a pathway!
 Their depth is partly the result of many hundreds of years of use and partly the action of water both of which wear down the soft sandstone that is the underlying geology of the area. I must revisit these holloways next year and seek out some that are new to me- Hell Lane near Bridport sounds like a choice location...