Planets And Aliens - First Adventure

I've uploaded the first module for the Planets and Aliens setting. It's simple and quite easy, but it gets the PCs down on the ground and off and running.  

There's no map included, the layout is fairly simple. If you'd like a map I can draw one, or get one done by a professional. Please let me know how you feel about maps. Are they essential, do you prefer to create your own from the description, or do you not even bother with them?