The soil type around Niagara Falls is primarily a type of glacial till, which is a mixture of clay, silt, sand, and gravel deposited by glaciers.

Here's why:

* Glacial History: Niagara Falls was formed by the retreating glaciers of the last ice age. These glaciers scraped and ground the land, creating a mix of different rock sizes and textures.

* Till Deposits: As the glaciers melted, the till they carried was deposited on the landscape, creating the foundation for the soils in the region.

* Specific Characteristics: This till is typically heavy and dense, with varying levels of drainage depending on the specific mix of components. It's often rich in nutrients due to the weathering of the glacial rocks.

Note: While glacial till is the dominant soil type around Niagara Falls, there might be some variations depending on the specific location and proximity to the Niagara Escarpment.