Mark Causeway is a short, raised lane associated with the small village of Mark in Somerset, cutting across the low-lying floodplain of the Somerset Levels. As with many causeways in the area, it reflects the long history of drainage and land reclamation that allowed settlement and agriculture to thrive on what was once marsh, and it still provides a dependable route across wetter ground.
Today the causeway sits in a quiet rural setting, bordered by pasture, ditches and the wetland habitats that attract birdwatchers and naturalists; economically it serves local farming and village life rather than tourism. Its atmosphere and surviving lanes and cottages hint at the modest but layered historic and social fabric of the levels: a landscape shaped by community engineering, seasonal rhythms and wildlife as much as by roads and roofs.