The Mountain That Became a Crater: Bingham Canyon 1895 to 2026

USGS HISTORICAL TOPO SCRUBBER

THE PALIMPSEST / Oquirrh Mountains, Utah

USGS topo maps record the physical inversion of an 8,000-foot alpine peak into the deepest human-excavated open-pit mine on Earth.

40.5233° N 112.1511° W 3 survey generations

Illustrative terrain study for Kennecott Bingham Canyon Mine — Landscape illustration, not a historical survey. Compare the recorded features alongside it.

READING 1 OF 3

1895 Kennecott Bingham Canyon Mine

Rugged forested mountain canyon with small underground shaft mining claims and timber mills.

Present in 1895

Bingham Creek natural canyon
Alpine summit peak (7,850 ft)
Bingham & Garfield narrow gauge rail

Absent from this record

Open-pit mining terraces
Tailings pond

USGS Salt Lake 1:250,000 Reconnaissance MapUSGS Powell Survey

Compare with 2026Modern record emphasis 50%

THEN → NOW

1895 2026

Pit excavation 0.75 miles deep (4,000 ft) and 2.5 miles wide; world's largest man-made excavation.

PRESENT IN 2026

Giant haul truck spiral roads
2013 Manefay massive landslide scar
Copperton tailings impoundment

ABSENT FROM THE LATEST RECORD

Original 8,000-ft mountain peak entirely gone

What changed. What remains.

READ THE TRANSFORMATIONS

01 / Resource Extraction

Over 3 billion tons of porphyry copper ore extracted, completely removing a mountain peak and creating an excavation visible to naked-eye astronauts from space.

ConsequenceUSGS contour lines inverted from concentric positive mountain rings to concentric negative crater depression isolines.