Okay, I'll be updating this as I go, instead of posting a new one as they upload:
Emprise Du Lion:
Hissing Wastes:
Exalted Plains:
Emerald Graves:
Western Approach:
Crestwood:
Forbidden Oasis:
Storm Coast:
Fallow Mire:
Hinterlands:
So, I just learned a few interesting things:
1. There appear to be more than 10 of these artifacts. Your maps number 10, and yet there is one in the Temple of Dirthamen. I know because I just played through that last night and it is its own separate zone just outside Val Royeux (that you unlock via an elven glyph quest you can stumble upon in the Exalted Plains, locate all the glyphs, then have a war table operation to decipher them). And it's DEFINITELY one of Solas's artifacts. I thought, seeing your maps, that I was misremembering... but I am standing there right now as I post this and it exists. I just took a screenshot.
2. The original one in the Hinterlands... the one that starts the artifact hunt. It's gone now. I also went there and, lo and behold, it no long sits there doing its little artifact thing. Interesting.
3. Your map doesn't seem to show the one in the Exalted Plains. It shows the Offering to the Dread Wolf shrine, at which it stands at the foot of the bridge to it, but I see no symbol on your map.
Methinks the guide may have some faults. Not saying this against you at all! You've revealed all the locations (of at least 10) far faster than I would by foot via trial and error while people wait on me to progress further in the game. But it has some odd inconsistencies. I also find it very strange the first one disappeared. I wonder if people are having trouble unlocking the quest because there appear to be 1) more than 10 (unless 10 is the minimum required to unlock the quest) and 2) the first one seemingly evaporates into thin air after completion.
I took screenshots of maps and physical locations anyway, just to help supplement your map photos. Will upload those tonight... and considering I have one that the maps say doesn't exist... I am glad I have done this!