Sherwood is an Annihilation map introduced in the February 2019 map rotation. The map is based on the story of Robin Hood. It is a medium-sized map featuring a small, densely-packed iron mine, a medium-sized gold mine and 4 emerald mines, one for each base. The diamond mine at mid holds 8 diamonds.
For more details on the map, check out the thread on the map.
Markers on the map detail locations of mines (see appropriate icon), Ender Furnace (furnace), Nexus (endstone) and Boss Arenas (nether star).