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This is found in the first bunker where Aloy initially explored as a child. Go to the first set of stairs in the lower floor and destroy the stone formation blocking the entrance to reach this flower.
Your best starting point is your old home with Rost. Fast-travel to the campfire there and exit to the southwest. Keep following the path until you reach the cliff. Turn to the right then use the zipline and tightrope to reach the metal flower.
The marker for this metal flower is found west of the Nora Hunting Grounds. The metal flower is out in the open, on a small rocky ledge behind the destroyed cottages.
This is found on the mountainside northeast of the quarry you and the other braves attacked the cultists during the main quest “The War-Chief’s Trail”. It’ll be barely visible from a distance; just look for the red flowers surrounding it to identify its location.
Found in a gentle slope beside a ruined building in the woods of Devil’s Grief. It should be northeast of the Firebellow, southeast of the Broadhead, and north of the Lancehorn sites in. Just head to the marked vicinity, look for a medium-sized building ruins, and use your Focus to lock on its exact location.
This is found in a bunker ruin between the Nora Hunting Grounds and the Devil’s Thirst map marker. Find the wrecked remains of a fallen radio tower on top of some rocks. Climb it to find the opening then carefully use the ledge to climb below. Swim along the stream and you’ll find the metal flower to the left.
This bunker ruin is notable since it houses the best armor in the game, which will require Power Cells to unlock it. You can check it out if you want and come back later once you have the required number of Power Cells to power its doors and access the loot within.
This is found southeast of Devil’s Grief, out in the open, near the swamp and beside a large building ruin. Take care since there are two Corrupted Sawtooths and Scrappers in the vicinity. You’ll have to sneak behind them or take them out before you can collect the metal flower.
This is found south of the Glinthawk site and campfire in the northeastern tip of the map. You can find it immediately along the way.
This is found between some trees along the road in the plains directly south of Hunter’s Gathering.
In the crossroads west of Hunter’s Gathering past the Scrapper site, take the uphill path and go past the waterfall and take the immediate right to find this hidden metal flower.