kcribb12/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

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.