diff --git a/src/tilemapper/battlemap.py b/src/tilemapper/battlemap.py
index a1945a0..c88d119 100644
--- a/src/tilemapper/battlemap.py
+++ b/src/tilemapper/battlemap.py
@@ -58,6 +58,12 @@ class BattleMap(BattleMapType):
         # invalidate the cache
         if hasattr(self, "grid"):
             del self.grid
+        if hasattr(self, "title"):
+            del self.title
+        if hasattr(self, "legend"):
+            del self.legend
+        if hasattr(self, "coordinates"):
+            del self.coordinates
         return self.grid
 
     def validate_source_data(self, data: str) -> bool:
@@ -81,7 +87,7 @@ class BattleMap(BattleMapType):
         Returns an Image instance.
         """
         if get_type_hints(self.tileset.render_grid)["return"] != Image:
-            raise NotImplementedError(f"Tile set does not support image rendering.")
+            raise NotImplementedError("Tile set does not support image rendering.")
         return self.tileset.render_grid(grid=self.grid, width=self.width, height=self.height)
 
     def as_string(self) -> str:
@@ -101,33 +107,66 @@ class BattleMap(BattleMapType):
         self.height = len(matrix)
         return Grid(data=matrix)
 
-    @property
+    @cached_property
     def title(self) -> str:
-        return f"BattleMap: {self.name} ({self.width} x {self.height}, {self.width * self.height * 5}sq.ft.)"
+        return f"BattleMap: {self.name} ({self.width} x {self.height})"
 
-    @property
+    @cached_property
     def legend(self) -> str:
         output = ""
-        locations = 0
+        locations = False
         for char in sorted(set(list(self.source_data)), key=str.lower):
             if char in self.tileset.config.legend:
-                if char in '0123456789':
-                    locations = max(locations, int(char))
+                if char in "0123456789":
+                    locations = True
                     continue
                 output += f"{char} - {self.tileset.config.legend[char]}\n"
         if locations:
-            location_key = "1" if locations == 1 else f"1-{locations}"
-            output += f"{location_key} - location"
-            width = len(location_key)
+            output += f"0-9 - locations"
             justified = ""
             for line in output.splitlines():
                 (key, sep, desc) = line.partition(" - ")
-                justified += f"{key.rjust(width, ' ')}{sep}{desc}\n"
+                justified += f"{key.rjust(3, ' ')}{sep}{desc}\n"
             output = "".join(justified)
         return output
 
+    @cached_property
+    def top_coordinates(self) -> str:
+        row = next(row for row in self.grid.data if len(row) == self.width)
+        max_len = max([len(cell.x_coordinate) for cell in row])
+        lines = list(("" for i in range(max_len)))
+        for pos in row:
+            for i in range(len(pos.x_coordinate)):
+                lines[max_len - i - 1] += pos.x_coordinate[i]
+        return "\n".join((line.rjust(len(row), " ") for line in lines))
+
+    @cached_property
+    def left_coordinates(self) -> List[str]:
+        return [row[0].y_coordinate if row else "" for row in self.grid.data]
+
     def __str__(self) -> str:
         return self.as_string()
 
     def __repr__(self) -> str:
-        return f"\n{self.title}\n\n{indent(str(self), '    ')}\n\nLegend:\n{indent(self.legend, '  ')}"
+        lines = ""
+        left_coords = self.left_coordinates
+        i = 0
+        for line in str(self).splitlines():
+            lines += f"{left_coords[i].rjust(2, ' ')} │ {line}".ljust(self.width, " ") + " │\n"
+            i = i + 1
+        top_break = "┌" + ("─" * (self.width + 2)) + "┐"
+        bot_break = "└" + ("─" * (self.width + 2)) + "┘"
+        return "\n".join(
+            [
+                "",
+                self.title,
+                "",
+                indent(self.top_coordinates, " " * 5),
+                indent(top_break, " " * 3),
+                lines.rstrip(),
+                indent(bot_break, " " * 3),
+                "",
+                "Legend:",
+                indent(self.legend, "  "),
+            ]
+        )
diff --git a/src/tilemapper/cli.py b/src/tilemapper/cli.py
index 70de585..1aee512 100644
--- a/src/tilemapper/cli.py
+++ b/src/tilemapper/cli.py
@@ -71,7 +71,7 @@ def render(
 def render_map(
     source: typer.FileText = INSTALL_DIR / "examples" / "five_room_dungeon.txt",
     outfile: Union[Path, None] = None,
-    tileset: str = 'colorized'
+    tileset: str = "colorized",
 ):
     manager = app_state["tileset_manager"]
     if tileset not in manager.available:
diff --git a/src/tilemapper/converter.py b/src/tilemapper/converter.py
index a0f3c63..ac5fe07 100644
--- a/src/tilemapper/converter.py
+++ b/src/tilemapper/converter.py
@@ -1,22 +1,18 @@
-from types import SimpleNamespace
-from collections import defaultdict
 import json
+from types import SimpleNamespace
 
 terrain_map = {
-    "0": " ",           # nothing
-    "16": " ",          # perimeter
+    "0": " ",  # nothing
+    "16": " ",  # perimeter
     "4": ".",
-
     "4194308": "v",  # stair_down
     "8388612": "^",  # stair_up
-
     "13107": "d",  # door
     "26214": "L",  # door, locked
     "52429": "T",  # door, trapped
     "10485": "S",  # door, secret
     "65540": "A",  # arch
     "20971": "H",  # portcullis
-
     "82208": "1",
     "83886": "2",
     "8556": "3",
@@ -27,7 +23,6 @@ terrain_map = {
     "93952": "8",
     "95630": "9",
     "80530": "0",
-
 }
 
 
@@ -39,12 +34,12 @@ def convert_donjon(source: str) -> str:
     src = SimpleNamespace(**json.loads(source))
 
     textmap = ""
-    for y in range(len(src.cells)):
+    for y in range(1, len(src.cells) - 1):
         row = src.cells[y]
-        for x in range(len(row)):
+        for x in range(1, len(row) - 1):
             char = get_char(str(row[x]), default=".")
             if not char:
                 raise Exception(f"{textmap}\nMissing value {row[x]} at ({y}, {x})")
             textmap += char
         textmap += "\n"
-    return textmap
+    return textmap.rstrip()
diff --git a/src/tilemapper/grid.py b/src/tilemapper/grid.py
index 2183b35..5463248 100644
--- a/src/tilemapper/grid.py
+++ b/src/tilemapper/grid.py
@@ -1,9 +1,9 @@
-from collections import namedtuple
+import string
 from dataclasses import dataclass
 from typing import Any, Union
 
-# a position inside a grid.
-Position = namedtuple("Position", ["y", "x", "value"])
+Y_COORDS = string.digits
+X_COORDS = list(string.ascii_uppercase + string.ascii_lowercase)
 
 
 @dataclass
@@ -12,6 +12,20 @@ class Position:
     x: int
     value: Any
 
+    @property
+    def coordinates(self) -> str:
+        return (self.y_coordinate, self.x_coordinate)
+
+    @property
+    def y_coordinate(self) -> str:
+        max_coord = len(Y_COORDS)
+        return str((int(self.y / max_coord) * max_coord) + (self.y % max_coord))
+
+    @property
+    def x_coordinate(self) -> str:
+        max_coord = len(X_COORDS)
+        return (int(self.x / max_coord) * X_COORDS[0]) + X_COORDS[(self.x % max_coord)]
+
     def __str__(self):
         return f"posiiton-{self.y}-{self.x}-{self.value}"
 
diff --git a/src/tilemapper/tileset.py b/src/tilemapper/tileset.py
index a8fc4b6..c5c8c68 100644
--- a/src/tilemapper/tileset.py
+++ b/src/tilemapper/tileset.py
@@ -96,6 +96,8 @@ class TileSet:
                     continue
                 if pos and pos.value:
                     output += pos.value.render()
+                else:
+                    output += self.empty_space.render()
             output += "\n"
         return output.rstrip("\n")
 
diff --git a/src/tilesets/ascii/tileset.toml b/src/tilesets/ascii/tileset.toml
index 57d5a8b..c938700 100644
--- a/src/tilesets/ascii/tileset.toml
+++ b/src/tilesets/ascii/tileset.toml
@@ -8,10 +8,13 @@ class = "tilemapper.tileset.TileSet"
 "." = "ground"
 "," = "grass"
 "_" = "water"
+"A" = "archway"
+"H" = "portcullis"
 "d" = "door, open"
 "D" = "door, closed"
 "L" = "door, locked"
 "S" = "door, secret"
+"T" = "door, trapped"
 "v" = "stairs, down"
 "^" = "stairs, up"
 "0" = "location 0"
@@ -25,3 +28,4 @@ class = "tilemapper.tileset.TileSet"
 "8" = "location 8"
 "9" = "location 9"
 
+
diff --git a/test/test_mapper.py b/test/test_mapper.py
index 5a44ffb..dde9b02 100644
--- a/test/test_mapper.py
+++ b/test/test_mapper.py
@@ -4,6 +4,7 @@ from textwrap import dedent
 import pytest
 
 from tilemapper import battlemap, tileset
+from tilemapper.grid import X_COORDS
 
 
 @pytest.fixture
@@ -43,4 +44,23 @@ def test_renderer(manager, sample_map):
     assert test_map.width == 21
     assert test_map.height == 12
     assert test_map.source_data == sample_map.strip("\n")
-    assert str(test_map) == sample_map.strip("\n")
+
+    srclines = sample_map.splitlines()[1:]
+    strlines = str(test_map).splitlines()
+    for i in range(len(strlines)):
+        assert strlines[i] == srclines[i].ljust(21, " ")
+
+
+def test_grid_coordiates(manager):
+    coord_length = len(X_COORDS)
+    map_size = 2 * coord_length + 1
+    bigmap = StringIO((("." * map_size) + "\n") * map_size)
+    test_map = battlemap.BattleMap("test map", source=bigmap, tileset=manager.load("ascii"))
+    test_map.load()
+    assert test_map.grid.data[-1][-1].coordinates == (f"{map_size - 1}", X_COORDS[0] * 3)
+
+    lines = test_map.top_coordinates.splitlines()
+    assert len(lines) == 3
+    assert lines[0] == (" " * (map_size - 1)) + X_COORDS[0]
+    assert lines[1][: (coord_length + 1)] == (" " * coord_length) + X_COORDS[0]
+    assert lines[2] == "".join(X_COORDS) + ((coord_length + 1) * X_COORDS[0])