Well, I've only spent a few hours on this so far. I plan to put many more into it, and I plan to use it as a reference for a book that I'll likely never finish. Anyways, the image is 3200x1800, to those with slow internet, so watch out. Here it is: http://files.customize.org/download/wallpapers/65670378/102656/A_Peculiar_Map-3000x1800.jpg
Now, of course, I can't show you the map without an excerpt from the supposed book (which I decided to write after coming up with a prompt based on an oddly shaped cloud in the sky that looked like some sort of strange bird from a fantasy world, that I continued to ponder over for the rest of the day). So, here you go:
"Wisps of air sliced through the frills of a strange bird as it flew over – looking beautiful and delicate, and yet it was strong enough to survive in the dense jungles. Its wings fluttered as it went by, and I watched – mesmerized. The blue and red colors were majestic, drawing my eyes away from the vivid green forest around me. As I gazed at it, I began to come to my head. I would need a sort of party to journey through these areas. I would have to go back the way I had come to recruit one.
I breathed in heavily and picked up my satchel, slinging it over my shoulder and allowing the leather to reach its usual, familiar position. Inside of it were my materials – a map, a compass, a box of matches, a canteen, a long knife – safely put into a holster, of course – and a few round lead balls and gunpowder packet for my flintlock rifle. I wrapped my dirty, grimy hands around the rifle and picked it up from the stump on which it had been resting. I turned around to examine my lean-to, to be sure I hadn't left anything, and then I ventured on."
Edit: The current state of the two paragraphs is:
"Wisps of air sliced through the frilled wings of a strange bird as it flew over – looking beautiful and delicate, and yet it was strong enough to survive in the dense jungles. Its wings danced as it soared, and I watched – mesmerized. The blue and red colors were majestic, drawing my eyes away from the vivid green forest around me. As I gazed at it, I began to realize the true demeanor of my journey. I would need a sort of party to journey through these areas. I would have to go back the way I had come to recruit one.
I breathed in heavily and picked up my satchel, slinging it over my shoulder and allowing the leather to reach its usual, familiar position. Inside of it were my materials – a map, a compass, a box of matches, a canteen, a long knife – safely put into a holster, of course – and a few round lead balls and gunpowder packet for my flintlock rifle. I wrapped my dirty, grimy hands around the rifle and picked it up from the stump on which it had been resting. I turned around to examine my lean-to, to be sure I hadn't left anything, and then I ventured on."
I made a few minor edits.
Edit 2: I figured out how to draw the mountains. Tutorial by "Jon" is here: http://www.fantasticmaps.com/2012/03/how-to-draw-isometric-hand-drawn-mountains/
But here are mine: