kcribb12/global-drillhole-database

---
license: cc-by-4.0
task_categories:
- tabular-classification
- feature-extraction
tags:
- geology
- mining
- geospatial
- drill-holes
- mineral-exploration
- earth-science
- gold
- copper
- coal
size_categories:
- 1M<n<10M
language:
- en
pretty_name: Global Drillhole Database
---

# Global Drillhole Database

**3,958,882+ drill holes** from geological surveys worldwide.

## Dataset Summary

| Region | Records | Type | Source |
|--------|---------|------|--------|
| 🇦🇺 Western Australia | 3,020,000 | Drill holes | DMIRS WAMEX |
| 🇨🇦 Canada | 378,666 | Drill holes + occurrences | Provincial surveys |
| 🇿🇦 **South Africa** | **262,213** | **Boreholes + samples** | **CGS Portal** |
| 🇦🇺 South Australia | 200,164 | Drill holes | SARIG |
| 🇬🇱 Greenland | 59,715 | Drill cores + samples | GEUS |
| 🇦🇺 Tasmania | 38,124 | Boreholes | MRT |
| **TOTAL** | **3,958,882** | | |

### 🇿🇦 South Africa Breakdown (NEW!)

| Source | Type | Records |
|--------|------|---------|
| CGS Borehole Positions | Exploration | 67,330 |
| CGS Coal & Core | Coal Exploration | 65,535 |
| CGS Dolomitic Land | Karst Investigation | 64,418 |
| CGS Geotechnical | Engineering | 25,471 |
| CGS Trial Holes | Test Pits | 18,874 |
| CGS Dolomite Reports | Reports | 8,847 |
| CGS Petrophysics | Rock Samples | 11,738 |
| **Total** | | **262,213** |

**Note:** An additional ~282,890 boreholes are available in South Africa's National Groundwater Archive (NGA) with free registration at https://www.dws.gov.za/NGANet/

### Canada Breakdown
- Quebec (SIGEOM): 185,322
- Ontario (ODHD): 166,281
- British Columbia (MINFILE): 15,789
- Saskatchewan (SMDI): 6,012
- Manitoba (MGS): 4,996
- Alberta (AGS): 266

### Greenland Breakdown
- Rock Samples: 20,000
- Ujarassiorit (citizen samples): 20,000
- Stream Sediments: 9,787
- Drill Cores: 4,817
- Heavy Minerals: 1,692
- Soil Samples: 1,494
- Mineral Occurrences: 1,276
- EMODnet Offshore: 550
- Scree Samples: 99

## Schema

| Field | Type | Description |
|-------|------|-------------|
| `id` | string | Unique identifier / hole ID |
| `name` | string | Hole name |
| `lat` | float | Latitude (WGS84) |
| `lon` | float | Longitude (WGS84) |
| `region` | string | State/Province/Country |
| `country` | string | Country code (CA, AU, US, GL, ZA) |
| `source` | string | Data source |
| `type` | string | drill_hole, mineral_occurrence, borehole, rock_sample |
| `commodity` | string | Target commodity (Gold, Copper, Coal, etc.) |
| `depth` | float | Total depth (meters) |
| `year` | int | Year drilled |
| `url` | string | Source URL |

## Data Files

| File | Records | Format |
|------|---------|--------|
| `data/western_australia.parquet` | 3,020,000 | Parquet |
| `data/canada.json` | 378,666 | JSON |
| `data/south_africa.parquet` | 262,213 | Parquet |
| `data/south_africa.json` | 262,213 | JSON |
| `data/south_australia.json` | 200,164 | JSON |
| `data/greenland.json` | 59,715 | JSON |
| `data/tasmania.json` | 38,124 | JSON |

## Usage

```python
from datasets import load_dataset

# Load all regions
ds = load_dataset("kcribb12/global-drillhole-database")

# Load specific region
south_africa = load_dataset("kcribb12/global-drillhole-database", data_files="data/south_africa.parquet")
canada = load_dataset("kcribb12/global-drillhole-database", data_files="data/canada.json")

# Filter by commodity
gold_holes = ds.filter(lambda x: x['commodity'] == 'Gold')
coal_holes = ds.filter(lambda x: x['commodity'] == 'Coal')
```

## Sources

- **Western Australia**: DMIRS SLIP Portal (https://dasc.dmirs.wa.gov.au/)
- **Canada**: Provincial Geological Surveys (SIGEOM, ODHD, MINFILE, etc.)
- **South Africa**: Council for Geoscience (https://maps.geoscience.org.za)
- **South Australia**: SARIG (https://map.sarig.sa.gov.au/)
- **Greenland**: GEUS (https://data.geus.dk/)
- **Tasmania**: MRT (https://www.mrt.tas.gov.au/)

## License

Data aggregated from public geological survey sources. Individual region licenses apply.