What's located beneath soil layers depends on where you are in the world, but generally speaking, you'll find bedrock.

Here's a breakdown:

* Soil Layers: Soil is made up of distinct layers called horizons. The top layer (A horizon) is the most fertile and supports plant life. Beneath that is the B horizon, which is richer in minerals.

* Bedrock: This is the solid, underlying rock layer that forms the Earth's crust. It's usually much harder and less porous than soil.

* Between soil and bedrock: You might find:

* Regolith: This is a loose, broken-up layer of rock fragments that forms as bedrock weathers.

* Saprolite: This is a layer of weathered bedrock that retains some of its original structure.

* Groundwater: This is water that's seeped into the ground and fills spaces within the rock and soil.

Important Note: The depth and composition of these layers vary greatly. In some areas, the bedrock is very close to the surface, while in others, it can be thousands of feet deep. The presence of groundwater also varies significantly.