The quarry has 72 collectibles (40 clues, 10 pieces of evidence, 22 tarot cards).

Finding all collection locations unlocks the following trophies:
What is this? – First clue collected
It all fits together – A suitable clue found
Curious children! – All clues collected
The truth is out there – First piece of evidence collected
Conspiracy theorists – All evidence collected
Forewarned is forearmed – Got a tarot reading
Decked Out – All Tarot Cards Found

Playlist for the collector’s guide “The Quarry”:
https://www.youtube.com/playlist?list=PLRr5L69yg_kGTFvyDvu3pyVdnRzFARDC4

Full overview and text instructions:
https://www.powerpyx.com/the-quarry-all-collectible-locations-clues-evidence-tarot-cards/

All collectibles are missable. If you miss something, you can use the chapter select (after the story), but this will reset your collection progress to where it was at the start of the chapter. Then you'll have to replay from that point and recollect everything from later chapters. Your progress will not carry over when you start a new game, meaning you'll need to find all collectibles of one type in one playthrough to get the trophy.
To make things even more complicated, you can't get all the collectibles in a single playthrough. You can only get all the evidence + all the tarots (recommended for the 1st playthrough) OR all the evidence + all the clues. You can't get all the tarots and clues in the same playthrough. The reason for this is that in Chapter 2, you have to choose whether to go to Rocky Road or Shady Glade. One path contains a tarot card, the other contains clues. These are mutually exclusive and cannot be collected in the same playthrough.

You can keep track of what you've found in the collection menu. If you only find the missing collectibles through the chapter select, the trophy will not unlock. You would have to collect everything again from that point on, then the trophy will unlock in Chapter 10 when you find the last collectible of the type you're missing, assuming you found everything in the same playthrough.

TIMELINE CHAPTER 1:

#1 – Note on camp history No. 2: Hunting note – 0:00
#2 – Note No. 3 on the camp history: Camp plaque – 0:29
#3 – Tarot #2: Temperance – 1:05
Preparing for Evidence #3 – 1:55
#4 – Freakshow Fire Clue #4: Newspaper Headline – 2:16
#5 – Note No. 4 on camp history: Recording of a camp song – 3:27
#6 – Evidence No. 1: Empty Vial – 3:59
#7 – Note No. 5 on the camp history: Information guide – 4:37

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