There are 3 types of LOD it's best to do them one at a time, so do terrain first. From the wiki: In the Creation Kit: Load both Skyrim.esm and your .esp Find Miscellaneous -> TextureSet Type "*landscape" in the feature field to isolate landscape textures Duplicate every texture reference that you will be using in your mod (or all of them, to be safe) They will be copied with "COPY0000" at the end; don't bother renaming Find Miscellaneous -> LandTexture Open every LandTexture, and where you can select "TextureSet" in the top right, change the file to your copied TextureSet SaveIn Oscape: Change game to Skyrim Check only tesannwyn.esp; click "Fill" Select your worldspace from the list At the bottom, hit "Browse", and save the file as [worldspace].raw in a new folder Check both feature-map and surface-map, hit 'Extract' Adjust the sea-level to your choice; hit 'Accept' Set a target of max resolution For low-mid range computers, start at around 320,000. If it doesn't crash, go up. Check 'Meshes' All LODs should be checked Format should only be '.nif' Check 'Normals' Check whichever texture size you want; Skyrim default is 1024 Check only DirectX Check 'Colors' Select whichever texture you want; again, default is 1024 Check only DirectX Hit 'Generate' Once in the Installer tab, check 'Generate LOD data' and each level and click 'Install'http://www.creationkit.com/Creating_a_Custom_Worldspace_with_LOD That should generate your map as well. You can't delete water, you have to set the height of the land and water from the world space menu: http://www.creationkit.com/World_Menu And the best link I can offer you for information and tutorials on building worldspaces: http://hoddminir.blogspot.se/2012/02/generating-lods-in-creation-kit.html I don't read the forum often so message me if you need more help.