Got this map when I started the "Blade in the Dark" quest. Is it needed in any way, or can I stash it and forget about it?
Odd that it's listed in the "Misc" part of you rinventory, so it can't be read. Doesn't update the game map either.

It's "dungeon dressing". Stash it, drop it, or give it to a vendor.

it gives vague locations of dragon burials. if youve gone to kynesgrove & seen sohlablawazzizname. there will be a named dragon at the ones not crossed off

It's simply there to give Delphine something appropriate to look at while deciding where to go. Otherwise pointless, there is a blade's sword in that room that is free for the taking tho