Sventsorggviresh's Volcano Lair (2003)

From the PDF introduction

A Web Enhancement for Draconomicon

The Draconomicon is the ultimate D&D game accessory about the legendary creatures that are literally the name of the game. Packed into the pages of this book are new dragon prestige classes, spells, feats, dragonlike monsters, and full statistics for 120 sample dragons-all ten of the chromatic and metallic dragons at all 12 age categories. This article presents one of the sample dragons from The Draconomicon along with her fully detailed lair. Sventsorggviresh, an old red dragon, is a suitable opponent for a 20th-level party.