These are some pictures I made using Terragen, a terrain generation program.
Click on the image to see it full size. All images are 640x480 or 1024x768 full size.

blue_fire.jpg
Blue Fire
36.44 KB		 blue_fire_2.jpg
Blue Fire 2
24.64 KB		 chasm_of_sorrow.jpg
Chasm Of Sorrow
118.81 KB		 dark_skies.jpg
Dark Skies
85.55 KB		 emerald_canyon.jpg
Emerald Canyon
95.96 KB
emerald_canyon2.jpg
Emerald Canyon 2
64.73 KB		 Farscape
Farscape
108.05 KB		 fire_world.jpg
Fire World
26.23 KB		 gollums_lair.jpg
Gollum's Lair
113.19 KB		 lake_of_bliss.jpg
Lake Of Bliss
54.89 KB
lake_of_fire.gif
Lake Of Fire
118.99 KB		 lake_tranquility.gif
Lake Tranquility
109.97 KB		 mars_surface.jpg
Mars Surface
65.19 KB		 moon_of_praxis.gif
Moon Of Praxis
127.83 KB		 mount_doom.jpg
Mount Doom
68.11 KB
oasis.gif
Oasis
178.74 KB		 spectreworld1.gif
Spectreworld 1
109.75 KB		 spectreworld2.gif
Spectreworld 2
161.82 KB		 spectreworld3.gif
Spectreworld 3
154.14 KB		 spectreworld4.gif
Spectreworld 4
211.05 KB
storm_over_praxis.gif
Storm Over Praxis
113.32 KB		 targus_iv

Targus IV
143 KB		 targus_v

Targus V
110 KB		 striped canyon

Striped Canyon
195 KB		 Fire Ring

Fire Ring
150 KB
ice shelf

Ice Shelf
116 KB		 targus rapids

Targus Rapids
278 KB		 dark planet

Dark Planet
180 KB		 ethereal lands

Ethereal Lands
112 KB		 surface tension

Surface Tension
225 KB