Cartography standards for ODD Earth
Herein are described mapping conventions and standards used for ODDEarth cartography.
There are six outdoor (and one indoor map) scales used throughout, as follows:
| Map Type | Scale per Hex | Used for |
| Continental | 72 miles | Continents and sub-continents |
| Regional | 24 miles | Poltical/Natural regions |
| Dominion | 8 miles | Kingdoms/Dominions and Areas of Influence |
| Area | 3 miles | Dominion sub-sections |
| Detail | 1 mile | Small areas |
| Encounter | (scale in feet) | Settlements, Dungeons, and Battlefields |
Unless otherwise noted, the top of all maps is North (West is to the left, East to the right, and South toward the bottom). All maps use the key below. Most symbols are congruent with the OD&D mapping canon; hex symbols are for use with HexMapper software:
| Non-natural | |||
| Hex Symbol | Description | Hex Symbol | Description |
| Battlefield | Lighthouse, beacon | ||
| Battlefield, naval | Manor | ||
| Battlefield, submerged | Mine | ||
| Camp, encampment | Palace | ||
| Capital (symbol in red) | Point of Interest | ||
| City | Port (overland spokes) | ||
| Clan moot | Post House, waystation | ||
| Fortress, wood | Ruins | ||
| Fortress, stone | Tower | ||
| Hamlet, thorp | Town | ||
| Lair, monster | Village | ||
| Terrain | |||
| Hex Symbol | Description | Hex Symbol | Description |
| Badlands | Jungle, deep | ||
| Badlands, submerged | Jungle, light | ||
| Badlands, volcanic | Kelp forest, deep | ||
| Beach | Kelp forest, light | ||
| Broken lands | Lava | ||
| Cactus scrub | Moss | ||
| Conifer forest, deep | Mountainous, blank | ||
| Conifer forest, light | Mountainous, heavy | ||
| Desert | Mountainous, light | ||
| Desert, rocky | Mountainous, submerged | ||
| Desert, sandy | Mud | ||
| Farmland, clear | Oasis | ||
| Fungal forest, deep | Petrified forest, deep | ||
| Fungal forest, light | Petrified forest, light | ||
| Forest, deep | Reef, deep | ||
| Forest, light | Reef, light | ||
| Geyser | Seagrass | ||
| Glacier | Sinkhole | ||
| Grassland | Snow field | ||
| Grassland, hilly | Solid rock | ||
| Heath, Moor | Swamp, marsh | ||
| Hills, blank | Underdark broken land | ||
| Hills, conifer | Volcano | ||
| Hills, forest | Volcano, submerged | ||
| Hills, jungle | Water, deep | ||
| Hills, rocky | Water, shallow | ||
| Hills, submerged | Whirlpool | ||
| Ice floe | Whirlpool, deep | ||
| Jungle | Whirlpool, shallow | ||