The phrase "granite boulders" refers to large, rocky formations made from granite. Granite is a type of igneous rock that forms when molten magma cools and solidifies. Boulders are large rocks that can vary in size but typically range between 10-200 pounds or more. When the term "granite boulders" is used together, it refers to rocks made from granite that have a significant size and weight. These types of rock formations can be found in various locations such as mountains, cliffs, and quarries. They are often admired for their beauty and durability, and they can also serve practical purposes like landscaping or construction.