Destructive Capacity: Multi city block level (pulverized a large amount of rock with a Getsuga Tenshō) | Multi city block level+ | Possibly town level | Town level+ (stalemated a Cero Oscuras from Ulquiorra) | At least town level+ (his Mugetsu should be at the very least as strong as Monster Aizen's Fragor), small city level via powerscaling | Building level | Large building level+, possibly city block level+ (while it is extremely likely that Ichigo is even stronger than his old Shikai sans Hollowfication, we have no real information on Ichigo's current standing)
^This is Destructive Capacity of Ichigo and as you see it's Small city level at best....let alone Mountain or all shit you said.
Destructive Capacity: Multi city block level+ | Town level+ | Mountain level (higher Kyubi Forms) | Town level+ | Mountain level+
^This is the Destructive Capacity for BM Naruto and as you also can see......he has Mountain level Destructive Capacity and higher with the the Kyuubi power.
BM Naruto>>Final Getsuga Tenshou Ichigo
Destructive Capacity: Island level+.Arguably small country level in his second form.
^This motherfuker Juubi has an Island level+Small Country level Destructive Capacity in his 2nd....let alone the 3rd form....no one in Bleachverse has Mountain Destructive Capacity....let alone Island and Small Country Destructive Capacity.