There used to be one on Wolfe's Lair (a Sacred fansite, now defunct), but as you can see from the previous subtext, it's now defunct, so I can't get at it. I don't think there's any particular reward for killing all of them, as there's *SPOILER* one dragon in particular that's friendly, and at least six others that need to be fought and killed (two of which can technically be avoided in a certain side quest) *SPOILER*
I know a couple dragons can be summoned by doing that ridiculous "Kill tens of thousands of baddies" thing in every area, I just can't remember which areas exactly. And I'll bet that the two ice dragons Winters Rigor and Frosted Death were patched to appear only in the woods outside Tyr-Fasul and not again in Frostgard (probably replaced by a single dragon).

Thats a shame I used to use that site with sacred. I never actually bothered hunting down the dragons other then the main and side quests but is this the same map?

It wasn't that map exactly, I think it was an official Ascaron-drawn-and-labeled map (which is weird since it wasn't featured on the official S1 site), but this one will do for now I guess. I wonder if there are more dragons added with the Underworld areas, which this map doesn't show.

It's not that someone transcribed that site; it IS Wolfe's Lair. Its original hosting place is gone, but it got space on PCTalk. It's not updated, though.

Ahh good to see the sites still running then, bookmarked.