I drew this map a while ago, and it looks like I never shared it.
I also went and keyed it up. I call it the Nest of Ferar Etmek for the blue dragon that lives in the lowest level. If you click on the link, you can download the PDF. I figure it'd be good for characters level 4-6 but it might be a bit tougher than that.
When I started working on it I was thinking it'd be good for the 1 page dungeon contest, but 53 keyed locations is a bit much for just one page.
Anyway, take a look, and let me know what you think!