I put this together because I, too, had lost my bearings in :Usulav:'s Gearworld. I thought i'd post it; it may be of help/use to others. Scale is non-existent, and it only covers rooms up until 11/03/2005.
The colored letters are where the map would overlap, so i just moved that part of the drawing. The rooms are numbered (in purple). They are:
1. The torn wall- Eland's entrance. :2. the alcoves- "the chicken goes here" :3. Muskrat. :4. Clockwork hive. :5. Overgrown end of cooridor. :6. Room with degraded mural and puddle. :7. Coordor ending w/ two pipes and a valve. :8. Red Frog. :9. Gear lily pads. :10. The moving statues. :11. Hall of Dog Armour. :12. The (1st) Door that Appeared. :13. Stairwell leading to Origami Crane. :14. Beveled Cooridor, left side. Ends with Up arrow. :15. Paper Cyclone. :16. The (2nd) Room that Appeared (found by Heinrich). :17. Cooridor with grille and mural (avacado comet). :18. Down the shaft- pipes and water. :19. End of the Beveled hall. :20. Sea Cave. :21. Water Garden. :22. Room of Junk. :23. Room that Disappears- Egg Incident. :24. 17 empty rooms. :25. Deer Cooler. :26 Box Rooms-"Eat it, Larry!"-Steamjacks. :27. Hopscotch Cathedral. :28. Gong room. :29. Three rooms-pig skeleton, gears and axle, test tubes. :30. Brick passage. :31. Headless statues. :32. Bone plants. :33. Bean room. :34. Room with stone egg. :35. Ichthyosaur in the wall.