Recently I have begun to chip away at the Hunter's Lodge missions in Horizon Zero Dawn. The first hunting ground I went to was the Sun Furrow Hunting Grounds. One of the missions there was to use ravagers to take down a Thunderjaw. I was surprised by how simple and quick the mission was. What intrigued me the most was that I could loot the Thunderjaw and get three very rare mods each time. To reset the area, I simply had to talk to the grounds keeper and the Thunderjaw respawned. It only takes 3 - 4 minutes to kill the Thunderjaw and I didn't have to fire a single arrow. It also provided me with a steady source of echo shells (which I never seem to have enough of). After selling the mods I didn't need, I left the hunting ground much richer than how I started.