I've played through the game several times from PS4 and PC. I've tracked several spots for Moose spawns (all spawn points are Moose and Bull-Moose).
By far the most reliable spawn point for moose if near Charlotte Balfour's cabin just off the trail going north from the path or the railroad. The most common time I've found them is noon.
I can consistently get moose to spawn here by doing this (more consistent 3-Star pelts after the Legendary Buck Trinket):
- Camp at a point south of hermit's shack (rare shotgun guy) and north of Annesburg. The camp points vary but all will work as long you're not near Charlotte's cabin).
- Sleep until the noon time and save the game (for easy reload if the moose is not there or is not a 3 star)
- Ride up to the trail and railroad intersection that is SW of Charlotte's cabin. Be wary of cougars on the ride up.
- On the right side of the trail and the branch that goes up to her cabin, there is a moose spawn. It is in the shadows so use Eagle-eye to see where it is.
- If it does not spawn or is a 1-2 star, reload the camp save and repeat. Your re-load may put you in different areas but all should be still south of Charlotte's cabin.
- If you're getting 4 for the Trapper, turn one in and then camp/sleep fully near the trapper and fast travel to Annesburg and repeat until you get all 4 and both types if you're Compendium completing.
I've used this method many times for moose and usually can get four 3-star pelts in 1-2 hours. Happy hunting.
