Grit Canyons
Gob Stone
This Oil Pump Camp is in the southern half of the canyons. Check the little shelter by the War Crier to find a relic on a shelf.
Black Cove
There's a second Oil Pump Camp in the northwestern part of the region. From the zipline leading down the pump itself (pictured above), turn around and head straight ahead to find a relic in a little shelter.
Vantage Outpost
The outpost is nearly dead centre in this region. Head down the ramp near the balloon to find this relic.
Scavenging Location #1
There's a camp between two large cliffs right in the middle of the area. Look for a relic by the large pyre in the centre of camp.
Scavenging Location #2
You'll find another small camp atop a large steppe right along the eastern border. The relic's in plain view by a chair.
Scavenging Location #3
There's a Scavenging Location squeezed underneath some rocks in the top left sector of the region. Blow threw the explosive door, and you'll find a relic on the other side.