GeoTIFF / COG
SoilGrids 250m (ISRIC)
Global soil property predictions at 250m resolution including organic carbon, pH, texture, and depth from ISRIC World Soil Information.
Soil property mapping Agricultural suitability analysis
Geology & soils
Geology & Soils
Global soil property rasters, geologic maps, and soil classification datasets including SoilGrids, USGS geologic maps, and GlobalSoilMap for terrain and agricultural analysis.
SoilGrids soil properties geologic maps ISRIC USGS geology gemstone deposits GEMDATA
Downloadable datasets in this category
7
Each dataset page captures official source links, access notes, and related GIS workflows.
Official sources and direct access
Mixed delivery
Pages combine official portals, direct downloads, and task-focused usage guidance in one canonical URL.
GEO coverage
Task-first content
Intros, FAQs, and workflows are written to answer real “where do I download…” searches.
Geology and soils pages help GIS users find gridded soil properties, geologic mapping, and classification data needed for agriculture, engineering, and environmental studies.
These layers combine well with DEM and land cover for integrated terrain analysis and land capability assessment.
Downloadable datasets in this category
Category directory
Category pages aggregate the most useful entry points first, then push visitors into detailed dataset pages with richer steps and FAQ sections.
Shapefile / GeoPDF / GeoTIFF
USGS Geologic Maps
US Geological Survey state and national geologic maps showing rock types, faults, and structural geology for the United States.
Geologic mapping Mineral exploration
GeoTIFF / WMS
GlobalSoilMap
An international consortium project producing fine-resolution (100m) digital soil maps with global coverage for key soil properties.
Fine-resolution soil mapping Food security assessment
ESRI Grid / ASCII / MDB
Harmonized World Soil Database (HWSD)
FAO/IIASA global soil database combining regional soil maps with harmonized classification at 30 arc-second resolution.
Global soil property mapping Crop suitability modeling
WMS / WFS / GeoTIFF / Shapefile
OneGeology Global Geological Map
UNESCO/OneGeology global geological map at 1:1M-1:5M scale with harmonized lithostratigraphic classification.
Geological mapping Mineral resource assessment
ESRI Grid / Shapefile
Global Permafrost Zonation (GTN-P)
Global permafrost distribution map showing extent and temperature zones from the Global Terrestrial Network for Permafrost.
Climate change impact studies Infrastructure planning in Arctic
Point (gemstone deposit sites)
Global gemstone deposit locations covering 1,022 sites in 61 countries for ruby, sapphire, emerald, and 17 other gemstone types.
Gemstone resource mapping Mining geography studies
Recommended geology-soils workflow
How to choose a source
- Start with SoilGrids for global soil property predictions at 250m resolution.
- Use USGS geologic maps for US-specific rock type and structural geology detail.
- Combine soil and geology layers with DEM and land cover for integrated terrain and land capability analysis.
Category FAQ
Category FAQ
What soil properties does SoilGrids provide?
SoilGrids provides predictions for organic carbon, pH, clay/sand/silt content, bulk density, cation exchange capacity, and soil depth at six standard depth intervals down to 200cm.
Can I use soil data with elevation and land cover layers?
Yes. Soil, elevation, and land cover layers are commonly combined for terrain analysis, agricultural suitability mapping, and environmental impact assessments.