Installation:

--NMM--
For NMM simply click "Download with Manager" button and activate the mod to
initialize the installer.

--Wrye Bash--
For Wrye bash users use the "..download manually" link. Drop the downloaded
zip file directly into your "..Bash Installers" folder. Under the Bain
Installers tab pick ONE package prefixed by the word "Map". If you would
like to use the optional "Clear Map Add-on" select this package, too.

--Manual Install--
For manual install users, extract the zip file of the map option you have
downloaded. Inside the extracted folder, Copy the Data folder and paste
it to where your SkyrimData folder is. It will ask you if you want to
overwrite the Data folder. Say yes. This will merge the two Data folders
together and place my mod with the correct file path. The file path should
look like this:

STEAMSteamAppscommonskyrimDatatexturesterrainTamriel

Uninstall: Delete all .dds map files in the Tamriel folder.