The Swamp Hut Map is an explorer map sold by cartographer villagers, added in the Spring to Life update. It marks the location of the nearest swamp hut, guiding the player there with a marker that updates as they travel. The map is bought from an apprentice-level cartographer for 8 emeralds and a compass; like other explorer maps it cannot be crafted. Once obtained it functions as a locator map, revealing terrain as the player explores toward the marked structure.
The structure a map leads to depends on the trading villager's biome. Each of the two or three possible maps is a separate trade, so one villager can offer several maps.