Sierra Nevada.
Uplift primarily over the last 5–10 million years (though the underlying rock, largely granite, is much older).
A landscape with a history.
Formed through crustal faulting and vertical block movement along the western edge of the Basin and Range region, producing a range with a dramatic, steep eastern escarpment and a gentler western slope — the classic fault-block profile.
What makes it remarkable
Composed largely of granite (the batholith that forms much of the range solidified deep underground long before the mountains rose, then was exposed as overlying rock eroded away) — a direct, visible tie to the Igneous Rocks page.
Another skyline. Another story.
Himalayas
Began forming approximately 50 million years ago; still actively rising today.
Andes
Formation began roughly 200 million years ago, with the modern range's major uplift occurring within the last 25 million years.
Rocky Mountains
Primary formation (the Laramide orogeny) occurred roughly 80–55 million years ago.