mars-exp-worlds/Geiodo/tunnel_world.utw

{Base;0,17,0;0;1}{cube;-15,10,0;0,0,10;10,0.5,10;}{cube;-46,0,0;0,0,15.5;75,0.5,20;}{cube;0,10,0;0,0,0;20,0.5,20;}