The first of four NERO research sites in Cascade, at the far end of a dark Freaker cave. Go at night when the cave clears out, and walk away with a NERO Injector.
It is a Freaker cave, so go at night when the occupants are out feeding. Carry a Molotov or two anyway in case some are still inside.
A NERO Injector and an intel recorder. Pick the boost you are shortest on: Health if you die to Hordes, Stamina for riding out fights, Focus for slow-mo aiming. NERO checkpoints hold injectors too, so check both on your map.
Image: Bend Studio / PlayStationBelknap Tunnel
Belknap Tunnel is the road tunnel linking the Cascade and Belknap regions. Swarmers lurk inside, so ride through with a plan, and you pass through it during the story mission Bad Way To Go Out.
Buck Meadow Bridge
Buck Meadow Bridge is a Cascade crossing on the trail toward Proxy Falls. It is where the hunt for Leon heads in We'll Make It Quick, and the Proxy Falls Horde roams the same trail.
Cascade Highway Horde
The Cascade Highway Horde is a 50-Swarmer Horde Killer target along the Santiam Highway near the logging camp. It opens after We've All Done Things and clears one of Deacon and Boozer's old danger spots.
Cascade NERO Research Site 2
The second of four NERO research sites in Cascade, underground in a cave. Deacon spies on a NERO scientist here after the cemetery story mission. It holds a NERO Injector and an intel recorder.