Gravel

"The gravel on this island seems to magically reappear when you break it. I don't ask questions."

- Haymitch

Gravel is a collection block found in a small ravine in the Spider's Den. In the gravel ravine at -265, 82, -320, there is the second part of the Flint Bros. quest, where you need to give Rick iron ingots.

Gravel and Flint can be bought from Pat.

Collection
''Note: Although, when mining gravel there is a chance for flint, it will always count towards your collection regardless of what you receive. ''

Natural Generation
Gravel generates near the ravine in Spider's Den.

Crafting
Note: Unlike other collections, many gravel crafting recipes use Flint as a base crafting item.