Map making

Before I start my map in Hammer Editor I am going to block it out using Google Sketchup.
Using this program I will make a rudimentary form of the map that I am aiming to make. Giving me a starting point that I can come back to.

 The first concept is above. It is sparse but it puts across the basic layout of my map cleanly.

The second concept. Here I have added some additional detail such as vehicles and trees as well as looking at the map from a new angle.