Alright guys, time to make some terrain!
1. Put the Top view into full screen and zoom way out. Make a large plane and set its length and height segs to 40. We need the segs so that we have more little bits of plane to work with later on.
2. Select the plane, right click on it and convert it to an editable mesh. On the modifier stack, select polygon. Switch to the arrow tool and select a vertical strip on the object, as shown in the diagram.
3. Hold down ctrl and select a horizontal strip as well.
4. In the edit menu, click on Select Invert. Now we'll apply a modifier on the newly selected part and the rest will be a road.
5. Full-screen the perspective viewport and reposition the plane so you can see it. You'll probably have to zoom waaay out on the perspective viewport.
6. On the modifier list drop-down menu, select Noise. On the parameters rollout, set the strength Z = 500. Noise is a modifier that causes each intersection to move randomly, in the Z direction (which is up/down).
7. With the noise applied, the plane will look more mountainous.
8. Some of the mountains are too pointy, if you want to change this, play with the scale parameter. On the following image, the scale is at 500. (Which spreads out the randomness a bit).
9. To make the hills more pronounced, we are going to raise them up. This will also highlight the roads leading to and from our futuristic base. Click on Editable Mesh on the modifier stack. This will cause the mountains to disappear, but we'll get them back. You'll get four gizmos that you had earlier for the four selected corners. Grab the select and translate tool 
then grab the Z of one of the gizmos and drag it up.
10. Reselect Noise on the modifier stack to make the mountains reappear. Right click on the background somewhere and click on Unfreeze All.
Just like that, you're done!