diff --git a/data/json/mapgen/map_extras/laststand.json b/data/json/mapgen/map_extras/laststand.json
new file mode 100644
index 0000000000000..6952e46ad8043
--- /dev/null
+++ b/data/json/mapgen/map_extras/laststand.json
@@ -0,0 +1,74 @@
+[
+  {
+    "type": "monstergroup",
+    "name": "GROUP_LAST_STAND",
+    "default": "mon_null",
+    "monsters": [
+      { "monster": "mon_civilian_police", "weight": 1, "cost_multiplier": 1, "ends": "5 days" },
+      { "monster": "mon_civilian_zombiefighter", "weight": 4, "cost_multiplier": 1, "ends": "5 days" }
+    ]
+  },
+  {
+    "type": "mapgen",
+    "method": "json",
+    "update_mapgen_id": "mx_laststand",
+    "object": {
+      "rows": [
+        "                        ",
+        "                        ",
+        "                        ",
+        "                        ",
+        "   ##################   ",
+        "   ##################   ",
+        "   ##################   ",
+        "   ###            ###   ",
+        "   ###            ###   ",
+        "   ###            ###   ",
+        "   ###            ###   ",
+        "   ###            ###   ",
+        "   ###            ###   ",
+        "   ###            ###   ",
+        "   ###            ###   ",
+        "   ###            ###   ",
+        "   ##################   ",
+        "   ##################   ",
+        "   ##################   ",
+        "                        ",
+        "                        ",
+        "                        ",
+        "                        ",
+        "                        "
+      ],
+      "furniture": {
+        "#": [
+          [ "f_barricade_road", 10 ],
+          [ "f_sandbag_half", 10 ],
+          [ "f_earthbag_half", 10 ],
+          [ "f_gravelbag_half", 10 ],
+          [ "f_table", 10 ],
+          [ "f_bench", 10 ],
+          "f_55gal_firebarrel",
+          "f_30gal_firebarrel",
+          "f_pallet_brick",
+          "f_pallet_cement",
+          "f_stack_plank",
+          "f_metal_table",
+          "f_armchair",
+          "f_chair",
+          "f_rack",
+          "f_locker",
+          "f_displaycase",
+          "f_recycle_bin",
+          "f_trashcan",
+          "f_metal_trashcan",
+          "f_rubble",
+          "f_wreckage",
+          [ "f_null", 150 ]
+        ]
+      },
+      "place_monster": [ { "group": "GROUP_LAST_STAND", "x": [ 6, 17 ], "y": [ 6, 16 ], "chance": 100, "repeat": [ 10, 15 ] } ],
+      "place_loot": [ { "group": "trash", "x": [ 6, 17 ], "y": [ 6, 16 ], "repeat": [ 5, 10 ] } ],
+      "flags": [ "ERASE_ALL_BEFORE_PLACING_TERRAIN" ]
+    }
+  }
+]
diff --git a/data/json/overmap/map_extras.json b/data/json/overmap/map_extras.json
index e4541c8cc31b8..c542371b73931 100644
--- a/data/json/overmap/map_extras.json
+++ b/data/json/overmap/map_extras.json
@@ -582,8 +582,23 @@
     "id": "mx_city_trap",
     "type": "map_extra",
     "name": { "str": "Zombie Trap" },
-    "description": "Zombie trap.",
+    "description": "Someone put up a trap against zombies here.",
     "generator": { "generator_method": "map_extra_function", "generator_id": "mx_city_trap" },
+    "sym": "I",
+    "color": "green",
+    "autonote": true,
+    "min_max_zlevel": [ 0, 0 ],
+    "flags": [ "MAN_MADE" ]
+  },
+  {
+    "id": "mx_laststand",
+    "type": "map_extra",
+    "name": { "str": "Last Stand" },
+    "description": "Some people made a last stand against the zombies here.",
+    "generator": { "generator_method": "update_mapgen", "generator_id": "mx_laststand" },
+    "sym": "X",
+    "color": "green",
+    "autonote": true,
     "min_max_zlevel": [ 0, 0 ],
     "flags": [ "MAN_MADE" ]
   },
diff --git a/data/json/regional_map_settings.json b/data/json/regional_map_settings.json
index f076ed3d6669d..5bb927b55b738 100644
--- a/data/json/regional_map_settings.json
+++ b/data/json/regional_map_settings.json
@@ -812,7 +812,7 @@
       },
       "bridgehead_ground": { "chance": 5, "extras": { "mx_minefield": 100 } },
       "city_center": { "chance": 20, "extras": { "mx_fungal_zone": 100 } },
-      "road_nesw_manhole": { "chance": 20, "extras": { "mx_city_trap": 100 } },
+      "road_nesw_manhole": { "chance": 20, "extras": { "mx_city_trap": 1, "mx_laststand": 1 } },
       "build": {
         "chance": 90,
         "extras": {