The massive slabs of red rock that make up Red Rocks Amphitheatre are the result of hundreds of millions of years of forces like geologic uplifts, erosion, the rise and fall of inland seas, and the… ...

The massive slabs of red rock that make up Red Rocks Amphitheatre are the result of hundreds of millions of years of forces like geologic uplifts, erosion, the rise and fall of inland seas, and the… ...

The Fountain Formation sandstone began over 300 million years ago with the gradual erosion of the Ancestral Rocky Mountains. Today these red sandstones stand beautifully at Roxborough at a sixty ...

The massive slabs of red rock that make up Red Rocks Amphitheatre are the result of hundreds of millions of years of forces like geologic uplifts, erosion, the rise and fall of inland seas, and the… ...

The massive slabs of red rock that make up Red Rocks Amphitheatre are the result of hundreds of millions of years of forces like geologic uplifts, erosion, the rise and fall of inland seas, and the… ...

The massive slabs of red rock that make up Red Rocks Amphitheatre are the result of hundreds of millions of years of forces like geologic uplifts, erosion, the rise and fall of inland seas, and the… ...

The Fountain Formation sandstone began over 300 million years ago with the gradual erosion of the Ancestral Rocky Mountains. Today these red sandstones stand beautifully at Roxborough at a sixty ...

The massive slabs of red rock that make up Red Rocks Amphitheatre are the result of hundreds of millions of years of forces like geologic uplifts, erosion, the rise and fall of inland seas, and the… ...

During burial and compaction of the Fountain Formation, iron-rich groundwater percolated through the rock leaving behind great rust-colored swirls,” the Red Rocks website states.

The Fountain Formation sandstone began over 300 million years ago with the gradual erosion of the Ancestral Rocky Mountains. Today these red sandstones stand beautifully at Roxborough at a sixty ...

During burial and compaction of the Fountain Formation, iron-rich groundwater percolated through the rock leaving behind great rust-colored swirls,” the Red Rocks website states.