yw
o7
Thanks. Hadn't thought about it that way and am only familiar with them on slopes.
Wouldn't know how dynamics would play out on even terrain, but what you write sounds plausible enough.
Thanks again.
Kek!
Wouldn't assume the concept of angle of repose has much to do with mt st helens and it's explosive eruption.
It literally developed a huge bulge on its north side before the eruption.
https://www.usgs.gov/media/images/bulge-north-side-mount-st-helens-developed-magma-push