[Ha Ha Thats Very Logical]

I'd need more information to say anything about that. I can't find anything about a volcano on top of the Grand Canyon that erupted 1000 years ago--there was an eruption around then at Sunset Crater near Flagstaff, but that's 50 miles away from the canyon. The National Park Service website says

While Sunset Crater Volcano was erupting, two lava flows originated at the base of the cinder cone. The Kana-A Flow (outside the present monument boundary in the Coconino National Forest), broke through the eastern base of of the volcano and flowed more than six miles to the northeast, filling a narrow valley. The Bonito Lava Flow came from the northwest base of the volcano, and pooled over a 2-square-mile area.

so that's a long way from flowing over the canyon walls. I do see references to lava from other volcanic fields overflowing the walls, but most places date them to hundreds of thousands to low millions of years. The only place I see a 1.3b year date is on another short-term creation site, and it's credited to Steve Austin, a creation geologist whose work has been widely criticized, some might say debunked.

I also wonder what kind of Indian artifacts could survive being buried in lava.

[AndyTheBear]

Thank you for doing some checking.

I also wonder what kind of Indian artifacts could survive being buried in lava.

I am under the impression that lava starts off very hot and then cools until it comes to a stop. From film I have seen of lava flows, it seems to have a black crust on the outside as it slows. Perhaps some artifacts could have survived being caught in this crust, such as an arrow head.

[AndyTheBear]

and it's credited to Steve Austin

Hey Steve Austin has super sight and can run 60 miles per hour! Don't argue with him ;-).

[stormer]

Cardenas Basalt - 1.1 billion years http://www.sciencedirect.com/science/article/pii/0301926894901082

Uinkaret lava flow - 1300 years http://www.volcano.si.edu/world/volcano.cfm?vnum=1209-01-