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Berkeley Pit: History & Measurement

The Berkeley Pit is a former open pit copper mine in the western United States, located in Butte, Montana. It is one mile (1.6 km) long by one-half mile (800 m) wide, with an approximate maximum depth of 1,780 feet (540 m). It is filled to a depth of about 900 feet (270 m) with water that is acidic (4.1 - 4.5 pH level), about the acidity of beer or…

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Berkeley Pit topic overview

The analysis highlights History and Measurement as prominent areas in the source structure around Berkeley Pit.

Related topics
49
Source areas
4
Connected nodes
53
Extracted relationships
56
Related term clusters
23
Bridge connections
53

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

Overview · 18 topics
Geology · 15 topics
Pollution, toxicity, and cleanup · 13 topics
History · 3 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Location
Butte, Silver Bow, Montana
CERCLIS ID
MTD980502777
Contaminants
Arsenic, cadmium, copper, zinc, lead
Listed
8 September 1983
Proposed
30 December 1982

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Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

History

Pollution, toxicity, and cleanup

Geology

For the semantics nerds

You can skip this section if you’re here for content ideas and keyword inspiration.

Advanced semantic analysis

How Berkeley Pit connects Entity context

The extracted context around Berkeley Pit shows recurring relationship patterns in the source. For example, Berkeley Pit → April, ARCO, BP/ARCO, Butte Mine Flooding Operable, Consent Decree, Decision, DEQ, Environmental Protection Agency, Environmental Quality, EPA, Horseshoe Bend, HSB, July, March, MDEQ, Montana Department, Montana Resources, Montana Resources Group, MR, November Another extracted example is Berkeley Pit → Anaconda, Berkeley Mine, Copper, July, Ultimately, Within. Use these groups to spot repeated connection types before inspecting the individual relationships.

Berkeley Pit

Top relations

related to Important dates · 26
Berkeley Pit → April, ARCO, BP/ARCO, Butte Mine Flooding Operable, Consent Decree, Decision, DEQ, Environmental Protection Agency, Environmental Quality, EPA, Horseshoe Bend, HSB, July, March, MDEQ, Montana Department, Montana Resources, Montana Resources Group, MR, November
related to history · 6
Berkeley Pit → Anaconda, Berkeley Mine, Copper, July, Ultimately, Within
related to Pollution, toxicity, and cleanup · 6
Berkeley Pit → Butte Mine Flooding Operable, Environmental Protection Agency Superfund, Silver Bow Creek/Butte Area, Superfund, The Berkeley Pit, Unit
related to Water · 3
Berkeley Pit → Blacktail Creek, Silver Bow Creek, The Berkeley Pit
is a · 2
Berkeley Pit → former open pit copper mine in the western United States, low spot and acts like a sump for contaminated water
related to Photos · 2
Berkeley Pit → Butte Montana, The Berkeley Pit
CERCLIS ID · 1
Berkeley Pit → MTD980502777
Contaminants · 1
Berkeley Pit → Arsenic, cadmium, copper, zinc, lead
Listed · 1
Berkeley Pit → 8 September 1983
Location · 1
Berkeley Pit → Butte, Silver Bow, Montana

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

pit water berkeley butte mine copper montana mining silver feet site superfund arco treatment plant level waterfowl located within zinc

Berkeley Pit relationships Subject–Predicate–Object triples

TTTA extracted 56 structured relationships around Berkeley Pit. Examples in this analysis include Berkeley Pit → CERCLIS ID → MTD980502777 and Berkeley Pit → Contaminants → Arsenic, cadmium, copper, zinc, lead. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
Berkeley PitCERCLIS IDMTD9805027771.00infobox
Berkeley PitContaminantsArsenic, cadmium, copper, zinc, lead1.00infobox
Berkeley PitListed8 September 19831.00infobox
Berkeley PitLocationButte, Silver Bow, Montana1.00infobox
Berkeley PitProposed30 December 19821.00infobox
Berkeley Pitis aformer open pit copper mine in the western United States0.90text
Berkeley Pitis alow spot and acts like a sump for contaminated water0.90text
Phoenix Wailersinstance ofDeterrents0.80text
a type of noise machineinstance ofDeterrents0.80text
and propane cannons that mimic gunshots are placed around the rim of the pit to keep birds from landinginstance ofDeterrents0.80text
berkeleydioneinstance ofNatural products0.80text
berkeleytrioneinstance ofNatural products0.80text

Related concept clusters Related term clusters

The concept neighborhoods around Berkeley Pit bring nearby vocabulary together. In this analysis, examples include Pit, Mine and Butte. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • Berkeley Pit
    • Pit
    • Mine
    • Butte
    • Montana
    • Bow
    • Superfund
    • Silver
    • Center
    • Located
    • States
    • United
    • Began
  • berkeley pit
    • Pit
    • Mine
    • Butte
    • Montana
    • Water
    • Bow
    • Superfund
    • Silver
    • Center
    • Located
    • States
    • United
  • open pit
    • Water
    • Butte
    • Montana
    • Rate
    • Superfund
    • Site
    • Began
    • Bow
    • Per
    • Within
    • Geese
    • Silver
  • mine
    • Butte
    • Montana
    • Located
    • States
    • United
    • Pit
    • Environmental
    • Superfund
    • Began
    • Bow
    • Within
    • Protection
  • butte, montana
    • Mine
    • Montana
    • States
    • United
    • Pit
    • Located
    • Bow
    • Environmental
    • Superfund
    • Silver
    • Arco
    • Copper
  • anaconda copper mining company
    • Operations
    • Silver
    • States
    • United
    • Zinc
    • Mine
    • Arsenic
    • Cadmium
    • Located
    • Montana
    • Within
    • Superfund
  • copper
    • Silver
    • States
    • United
    • Zinc
    • Mine
    • Arsenic
    • Cadmium
    • Located
    • Montana
    • Within
    • Superfund
    • Butte
  • montana department of environmental quality
    • Site
    • States
    • United
    • Protection
    • Superfund
    • Mine
    • Pit
    • Arco
    • Environmental
    • Located
    • Montana
    • Within

Connections between topic areas Semantic bridges

For Berkeley Pit, one of the stronger structural bridges in this analysis connects Berkeley Pit with Overview. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
Berkeley Pit — Overview · splits 35 ⟂ 19
Berkeley Pit — Geology · splits 38 ⟂ 16
Berkeley Pit — Pollution, toxicity, and cleanup · splits 40 ⟂ 14
Berkeley Pit — History · splits 50 ⟂ 4

Map overview Semantic statistics

Berkeley Pit

Nodes54
Edges53
Triples56
Avg. degree1.96
Density0.037037
Components1

Source & methodology

TTTA analyzes the structure around Berkeley Pit to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as History & Measurement, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — Berkeley Pit · EN edition · Analysis: TopicsToTalkAbout

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