Creating the pine trees
With the mountains in place, add a Forest Pack object and select the mountains. Since these trees are quite far away we can use the pine trees that ship with Forest Pack. Under the Geometry tab adjust the size of the trees to fit the scene. In the Areas tab, add a new paint layer and set it to exclude. Paint out areas where we don’t want trees. Scroll down in the Areas tab to ‘Falloff’, turn on the Density and set the exclude to 5m. Turn on the Scale and set the exclude to 15m. This will create a falloff as the trees reach the edges of the mountains. Open the Distribution tab and adjust the density value; this scene has a value of 120m. In the Transforms tab, turn on the Transform, Rotation and Scale options; the default values work quite well here.