I need a detailed map of south america, showing were the Andes Moutains, the Central plains, the Eastern Highlands and the equater.

This site will have what you need.

http://gosouthamerica.about.com/library/blSamaps3a.htm

The Central Plains are sometimes called the Gran Chaco. The Eastern Highlands are also called the Brazilian Highlands. Check these maps.

http://www.lib.utexas.edu/maps/americas/south_america_ref04.jpg

http://www.graphicmaps.com/webimage/countrys/salnd.htm

To find a detailed map of South America showing the Andes Mountains, Central Plains, Eastern Highlands, and the equator, you can follow these steps:

1. Open a web browser on your device.
2. Go to a search engine, such as Google, Bing, or Yahoo.
3. In the search bar, type in "detailed map of South America".
4. Click on the "Images" tab to view image results specifically.
5. Browse through the results to find a map that includes the desired features, such as the Andes Mountains, Central Plains, Eastern Highlands, and the equator.
6. Once you find a suitable map, click on the image to open it in full size.
7. You can zoom in or out on the map to get a closer or broader view as per your requirement.
8. Look for labels or legends on the map to identify the Andes Mountains, Central Plains, Eastern Highlands, and the equator. The Andes Mountains run along the western side of South America, the Central Plains are located towards the northern part of the continent, the Eastern Highlands are situated on the eastern side, and the equator runs across the northern part of the continent.

By following these steps, you should be able to find a detailed map of South America that includes the features you are looking for.