Wine Companion
Wine Companion combines original educational writing with openly reusable public data. This page records the sources, licenses, required credits, and material transformations behind our maps and regional profiles.
Last updated: August 2026
Destatis GENESIS table 41252-0002 supplies the 2025 vineyard area, grape hectares, and regional percentages used in German profile questions. Aggregate rows are excluded and percentages are calculated from the published regional totals.
Required credit: © Statistisches Bundesamt (Destatis), 2026 · Data Licence Germany – Attribution – Version 2.0 · data adapted and percentages calculated by Wine Companion.
The 13 educational wine-region shapes are derived from the official BKG thematic GeoPDF from November 2014. Its vector features were grouped by official region, simplified, reprojected, and converted into SVG paths. They are suitable for country-scale learning, not legal parcel boundaries.
Required credit: © Bundesamt für Kartographie und Geodäsie, Frankfurt am Main · adapted by Wine Companion.
The country context outline comes from BKG VG5000 with reference date 1 January 2025. It was filtered to Germany, reprojected, and rounded for efficient SVG display.
Required credit: © BKG (2025) dl-de/by-2-0 · data adapted by Wine Companion.
Deutsches Weininstitut pages were consulted to verify facts for Gutedel and Domina. No DWI prose or photography is redistributed: the bilingual teaching text is original and the quantitative figures come from Destatis.
Statistik Austria municipality geometry dated 1 January 2025 is used to construct the selectable DAC areas defined in Austrian wine law. The source polygons are dissolved, simplified, reprojected, and converted to SVG. Published agricultural tables provide the attributed regional statistics.
Required credit: Datenquelle: Statistik Austria – data.statistik.gv.at · CC BY 4.0 · data adapted by Wine Companion.
Land Niederösterreich's cadastral-municipality boundaries are used to construct the selectable Ortswein origins within eight Level 3 teaching packs. Statutory cadastral selectors are dissolved, simplified with topology preservation, projected, and converted to SVG paths.
Required credit: Datenquelle: Abteilung BD1 - GIS Support / Amt der NÖ Landesregierung - http://www.noe.gv.at/ · CC BY 4.0 · data adapted by Wine Companion.
The federal-state overview uses Natural Earth Admin 1 data, version 5.1.1. Austrian features are filtered, projected, and converted into the overview SVG.
Natural Earth data is in the public domain.
The Mur centreline from OpenStreetMap relation 59792 helps assign municipalities on either side of the river for the approximate Styrian educational shapes.
Required credit: © OpenStreetMap contributors · Open Data Commons Open Database License 1.0.
The 12 broad French regions and 32 currently selectable Level 2 sectors are derived from official INAO AOC geographic areas. Selected polygons are grouped, dissolved, simplified, and projected for teaching; they are not legal parcel boundaries.
Required credit: Source: INAO, Délimitation des aires géographiques des SIQO · Open Licence 2.0 · data adapted by Wine Companion.
The metropolitan France overview uses Natural Earth Admin 0 data, version 5.1.2. Overseas components are excluded and the outline is simplified and projected for the quiz map.
Natural Earth data is in the public domain.
Regional grape hectares come from the existing canonical import of the University of Adelaide's 2023 winegrape bearing-area database. Wine Companion calculates each variety's regional percentage from those hectare values. The publisher provides a requested citation but no explicit open-data license was found on the download page; no workbook or source prose is redistributed.
Citation: Anderson, Nelgen & Puga, Database of Regional, National and Global Winegrape Bearing Areas by Variety, 2000 to 2023, University of Adelaide, December 2025.
The 20 Italian regional contexts and 109 currently selectable province-equivalent Level 2 areas use Istat's official generalized 2026 administrative boundaries. They are simplified, reprojected, and converted to SVG for teaching.
Required credit: Source: Istat, administrative boundaries (2026) · CC BY 4.0 · data adapted by Wine Companion.
Regional grape hectares come from the existing canonical import of the University of Adelaide's 2023 winegrape bearing-area database. Wine Companion calculates each variety's regional percentage from those hectare values. The publisher provides a requested citation but no explicit open-data license was found on the download page; no workbook or source prose is redistributed.
Citation: Anderson, Nelgen & Puga, Database of Regional, National and Global Winegrape Bearing Areas by Variety, 2000 to 2023, University of Adelaide, December 2025.
Ninety of Spain's 106 current protected wine origins use MAPA's official geographic areas. Source features are dissolved by official name, simplified, projected, and separated into unambiguous quiz packs. Sixteen newer origins are not present in the downloaded geometry snapshot.
Required credit: © Ministerio de Agricultura, Pesca y Alimentación (MAPA). MAPA permits reuse for informative, educational, or agri-food promotion purposes, but excludes commercial promotion or sale of food. Data adapted by Wine Companion.
The overview uses Natural Earth Admin 1 data, version 5.1.1, for Spain's spatial autonomous-community teaching contexts, including the Balearic and Canary Islands. The features are dissolved, simplified, and projected for the quiz map.
Natural Earth data is in the public domain.
Regional grape hectares come from the existing canonical import of the University of Adelaide's 2023 winegrape bearing-area database. Wine Companion calculates each variety's regional percentage from those hectare values. The publisher provides a requested citation but no explicit open-data license was found on the download page; no workbook or source prose is redistributed.
Citation: Anderson, Nelgen & Puga, Database of Regional, National and Global Winegrape Bearing Areas by Variety, 2000 to 2023, University of Adelaide, December 2025.
Official hierarchy facts come from IVV Aviso no. 175/2022 and are independently verified against the European Commission's eAmbrosia register. The existing IVV-derived boundary shapes have no verified open-data licence and remain a legal-review blocker for commercial redistribution.
Hierarchy sources: Instituto da Vinha e do Vinho, I.P. (IVV), Aviso no. 175/2022, and European Commission DG AGRI eAmbrosia · eAmbrosia CC BY 4.0 · normalized by Wine Companion. IVV geometry licence unresolved; this credit does not authorize geometry redistribution.
Regional grape hectares come from the existing canonical import of the University of Adelaide's 2023 winegrape bearing-area database. Wine Companion calculates each variety's regional percentage from those hectare values. The publisher provides a requested citation but no explicit open-data license was found on the download page; no workbook or source prose is redistributed.
Citation: Anderson, Nelgen & Puga, Database of Regional, National and Global Winegrape Bearing Areas by Variety, 2000 to 2023, University of Adelaide, December 2025.
The national overview and state context maps use the US Census Bureau's 2025 Cartographic Boundary File for states at 1:5,000,000. All 34 states containing an established AVA are selectable as educational Level 1 contexts; shapes are simplified, projected, and converted to SVG for country- and state-scale learning.
Source: U.S. Census Bureau · United States federal government work, public domain under 17 U.S.C. § 105 · data adapted by Wine Companion.
Selectable AVA shapes come from TTB's official AVAs Production service. Established features are selected by official name and state; overlapping parent and nested AVAs are kept out of the same matching round. The controlling legal descriptions remain those in 27 CFR part 9.
Source: Alcohol and Tobacco Tax and Trade Bureau (TTB) · TTB states there is no fee or restriction on use of its shapefiles · data adapted by Wine Companion.
The California 2024 Grape Acreage Report provides statewide wine-grape totals, color totals, and variety acreage used in profile questions. Acres are converted to hectares and regional shares are calculated from the published statewide total.
United States federal government statistical work · public domain under 17 U.S.C. § 105 · values converted and percentages calculated by Wine Companion.
USDA NASS's Washington Vineyard Acreage Report 2017 supplies statewide wine-grape, color, and variety acreage. Acres are converted to hectares and percentages are calculated from the published total.
United States federal government statistical work · public domain under 17 U.S.C. § 105 · values converted and percentages calculated by Wine Companion.
The Oregon Blue Book's 2022 wine-industry figures supply total planted acreage and identify Pinot Noir as 60% of planted acreage. Only those published figures are used; no unsupported state variety breakdown is inferred.
Source: Oregon Secretary of State, Oregon Blue Book · factual values transcribed with source attribution; no source imagery or prose is redistributed.
Regional grape hectares come from the existing canonical import of the University of Adelaide's 2023 winegrape bearing-area database. Wine Companion calculates each variety's regional percentage from those hectare values. The publisher provides a requested citation but no explicit open-data license was found on the download page; no workbook or source prose is redistributed.
Citation: Anderson, Nelgen & Puga, Database of Regional, National and Global Winegrape Bearing Areas by Variety, 2000 to 2023, University of Adelaide, December 2025.
The official British Columbia GI names come from section 56 of the Wines of Marked Quality Regulation. Wine Companion normalizes the nine main GIs as children of British Columbia for teaching; no provincial or BC Wine Authority maps, photographs, or page prose are copied.
These materials contain information that has been derived from information originally made available by the Province of British Columbia at: http://www.bclaws.gov.bc.ca and this information is being used in accordance with the King's Printer Licence – British Columbia available at: https://www.bclaws.gov.bc.ca/standards/Licence.html. They have not, however, been produced in affiliation with, or with the endorsement of, the Province of British Columbia and THESE MATERIALS ARE NOT AN OFFICIAL VERSION.
The 2022 BC Wine Grape Acreage Report supplies the factual variety acres used for Similkameen Valley, Fraser Valley, and Vancouver Island profile questions. Wine Companion converts acres to hectares and calculates regional percentages; no report design, charts, or prose are redistributed. No explicit open-data licence was found.
Source: British Columbia Wine Grape Council, 2022 BC Wine Grape Acreage Report · factual values transcribed with attribution.
The Canada overview uses Natural Earth Admin 1 data, version 5.1.1, to show British Columbia, Ontario, Nova Scotia, and Quebec. The features are filtered, simplified, projected, and converted to SVG paths.
Natural Earth data is in the public domain.
OpenStreetMap administrative and geographic features provide approximate learning shapes for three British Columbia GIs. They are not regulatory GI boundaries, and the official authority cartography is not traced or redistributed.
Required credit: © OpenStreetMap contributors · Open Data Commons Open Database License 1.0.
Georgia's National Wine Agency supplies the canonical six-region and twelve-subzone hierarchy. Wine Companion transcribes the geographic facts and writes original bilingual teaching content; no Agency map artwork or boundary geometry is copied.
Source: National Wine Agency of Georgia · factual region and subzone names transcribed with attribution. The Agency site states All rights reserved; no source geometry is redistributed.
Wine Australia's official GI register and ArcGIS layers supply the Zone → Region hierarchy and reusable boundary geometry. Features are filtered, simplified, reprojected, and converted into selectable SVG teaching maps.
Required credit: Geographical Indications of Australia, © Wine Australia · CC BY 4.0 · data adapted by Wine Companion.
The IPONZ register and New Zealand Winegrowers establish the canonical GI nesting and teaching names. No explicit licence for adapting the applicant-supplied GI maps was verified, so Level 2 boundaries are not redistributed.
Sources: Intellectual Property Office of New Zealand and New Zealand Winegrowers · factual GI names and hierarchy transcribed with attribution; exact GI geometry remains licence-blocked.
North Island and South Island context shapes use Natural Earth Admin 1 version 5.1.1. The administrative features are grouped by island, projected, and converted into an introductory map.
Natural Earth data is in the public domain.
The Instituto Nacional de Vitivinicultura and Wines of Argentina supply protected-origin facts and the six-region teaching framework. Only factual names and groupings are transcribed; source map artwork is not copied.
Sources: Instituto Nacional de Vitivinicultura and Wines of Argentina · factual hierarchy normalized and original bilingual teaching text written by Wine Companion.
Natural Earth Admin 1 version 5.1.1 supplies province boundaries. Macro-regions are explicit unions of their listed provinces; the shapes show administrative teaching context, not planted vineyard footprints.
Natural Earth data is in the public domain.
Article 1 of current Decreto 464 supplies the six viticultural regions and eighteen subregions. Wine Companion transcribes the legal geographic definitions and does not copy SAG map assets.
Source: Chilean Ministry of Agriculture / Servicio Agrícola y Ganadero, Decreto 464 · legal facts transcribed with attribution.
Licensed geoBoundaries region, province, and commune layers are combined exactly from the administrative units named by Decreto 464. The resulting educational polygons are simplified and projected; they are not traced from SAG artwork.
Required credits vary by layer: BCN/OCHA ROLAC · CC BY 3.0 IGO; and © OpenStreetMap contributors · ODbL 1.0 · data adapted by Wine Companion.
The February 2026 SAWIS register supplies the complete factual hierarchy of geographical units, regions, districts, and wards. No explicit redistribution licence was verified for the official legal boundary assets, so Level 2 Wine of Origin polygons are not copied or approximated.
Source: SAWIS / Wine and Spirit Board, Production Areas February 2026 · factual names and ranks transcribed with attribution; official Wine of Origin geometry remains licence-blocked.
The introductory map uses licensed geoBoundaries Admin 1 province geometry for seven non-overlapping province-scale geographical units. It deliberately does not present municipal boundaries as legal Wine of Origin districts.
Required credit: geoBoundaries / OCHA ROSEA / South African Municipal Demarcation Board · CC BY 3.0 IGO · data adapted by Wine Companion.
The consolidated annex to MADR Order 1,205/2018 supplies the current eight viticultural regions, 37 podgorii, 48 independent viticultural centres, and 131 contained centres. Wine Companion transcribes only factual identities and parent links; locality rows are not promoted into separate origins, and no official map asset is copied.
Source: Romanian Ministry of Agriculture and Rural Development via Portal Legislativ · consolidated through 23 February 2026 · legal facts normalized by Wine Companion.
ONVPV's report of OIV 2024 figures provides the country-level total of 187,000 hectares under vine, including 8,179 hectares of table grapes. It does not provide same-geography regional grape shares, so Romania Profile Check is qualitative only and does not display regional hectare or percentage values.
Source: Oficiul Național al Viei și Produselor Vitivinicole (ONVPV), reporting OIV 2024 figures · factual national values transcribed with attribution.
Map shapes are simplified for teaching and performance. They are not cadastral or legal boundaries. Retrieval dates, feature mappings, scripts, and reproducible transformations are maintained in the repository provenance documentation and are reviewed whenever a dataset is updated.