Sunset Crater erupted circa 1064-1065 with the "final" burst around 1250. Black lava remnants are everywhere in the vicinity of the volcano which today, even after nearly 1000 years, has very sparse surrounding vegetation.
IMPORTANT, please note ... whenever you visit a Pbase gallery for the first time, or if you have clicked on a size smaller than "original size" while visiting this or any other Pbase gallery, please be sure to click on "original" size, otherwise you will be presented with a low quality JPEG as versus the high quality JPEG (the size doesn't change, only the quality level of the JPEG compression); you only have to do this once, on the very first picture you look at.
Alternatively, on the very first picture you can add "/original" to the URL in the address bar and hit "refresh" or "go" as the case may be; again, you only have to do this once (on the very first picture). This "/original to the URL" approach is the sure-fire/no-mistake/best way to ensure you will see the highest quality JPEG presentation.