The Lobert Draw Ridge Horde is a 300-Swarmer Horde Killer target on Highway 97, one of the largest in the game. It opens after A War We Can Win, and you should only take it on with a full kit and a long trap line.
Prepare like it's a boss fight, with napalm, proximity and attractor bombs plus an LMG or a high-capacity rifle. Set traps along a long retreat with several chokepoints, and refill from your saddlebags between waves.
Hordes rest in their hibernation spot during the day and go out to feed and drink after dark. Hitting a sleeping Horde lets you set up traps first. Every Swarmer drops an ear, so loot the field afterward for the bounty collector.
It becomes a Horde Killer target after A War We Can Win.
Deacon notes that the feds blew up this mountain pass, and the Hordes just climbed over the rubble.
Chemult Station Horde
The Chemult Station Horde is a 125-Swarmer Horde Killer target living in a derailed NERO body train at Chemult's rail station. It opens after A War We Can Win and pays Diamond Lake.
Groose Gardens Horde
The Groose Gardens Horde is a 125-Swarmer Horde Killer target on Highway 97. It opens after A War We Can Win and pays 4,000 XP plus Diamond Lake Trust.
Mt. Bailey Horde
Mt. Bailey Horde is a 275-Swarmer Horde in Crater Lake, one of the Horde Killer targets. It opens after A War We Can Win. Clear it for 4,000 XP and 1,100 Trust at Wizard Island.
Beasley Lake Horde
The Beasley Lake Horde is a 125-Swarmer Horde Killer target on Highway 97. It opens after For An Outlaw Biker and pays 4,000 XP plus Diamond Lake Trust.