National Geoscience Data
The geology of Tanzania, at your fingertips.
NGMRIS — the National Geo-data & Mineral Resources Information System — is the Geological Survey of Tanzania's gateway to geological maps, mineral-resource data, laboratory results and the national geoscience archive.
About the survey
A century of mapping the ground beneath us.
The Geological Survey of Tanzania collects, curates and publishes the country's geoscientific record — the maps, mineral data, samples and reports that underpin responsible mining, land-use planning and research. NGMRIS brings that record online so anyone can discover it, and the public can buy and download it through the Data Shop.
What we hold
The national geoscience record, in one system.
Geological Maps
Published 1:100,000 sheets on the national Quarter Degree Sheet grid, plus thematic and geo-referenced maps.
Mineral Resources
Deposits, occurrences and commodities nationwide — from gold and gemstones to industrial minerals.
Laboratory & Analysis
Sample results and analytical data from the Geological Survey's geoscience laboratories.
Museum & Core Store
Rock, mineral and drill-core collections curated for research and public reference.
Library & Archive
Reports, publications and historical records from decades of national survey work.
Everything published is searchable, purchasable and downloadable in the Data Shop.
Get the data you need.
Browse published maps, datasets and reports, then search, purchase and download in a few clicks — no visit to the office required.
Browse the Data Shop