Stitched this together myself out of a stack of Pip-Boy map screenshots, because scrolling through eleven separate dig-site pages trying to remember which one was near which landmark was getting old. Search a location below, or just scroll around — every documented treasure hoard and every landmark I've bothered to tag is pinned here in roughly the right spot relative to everything else. That's the whole point: not "here's the exact GPS coordinate," but "here's what's actually near what."
The Wasteland Map
Documented dig site (links to the guide)
Landmark (reference only)
Brighter-ringed landmarks have documented creature spawns and/or scrap farming spots nearby — hover a pin, or search a creature/scrap name, to see which.
Dig-site pins are field estimates from written directions — Fallout 76 doesn't mark treasure hoards on the map, so these are my best guess at relative position, not surveyed coordinates. Landmark pins are matched from in-game screenshots and should be close. Treat the whole thing as a draft pending a proper accuracy pass.