This map consists of the entire Western United States, from the west coast to the Mississippi River.
It consists of hand painted biomes, important rivers and lakes, such as the Colorado River, the Great Salt Lake and the lakes of Minnesota for example, and the semi-realistic biomes. The spawn is located in Salt Lake City in Utah.
The total area of this map is about 800 km2 (300 sq mi), which makes it one of the largest custom map in Minecraft. This map will later on consist of two halves, which can be merged together, for those who want the full size.
Please tell me in the comments if you want to use this map on the server (It will be really appreciated for my attention of server owners to tell me if they want me to join).
Update 1: Fixed the sandstone desert
Update 2: Smoothed out the terrain and added rivers west of the Rocky Mountains
Update 3: Expanded the total area eastward and marked the border at Minnesota. This version uploaded to the site is a display version, but the full version can be downloaded in the sponsored link. More rivers and lakes has been added to the east, especially the lakes in Minnesota. The reason is because i found a more detailed lakes and rivers map that i overlayed.
Update 4: Added the New England states as a separate map.