Global Ski Atlas
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About Global Ski Atlas

Learn about Global Ski Atlas, the technology behind it, and the team.

AWS Frontend: GitHub, GitHub Actions, S3 static site, CloudFront CDN, API Gateway, Lambda wiki API, DynamoDB (WikiPages, WikiRevisions, WikiComments), Wiki (Online Atlas)

Frontend

Static site, CDN, and Online Atlas wiki

The site is built and deployed from GitHub via GitHub Actions. Static content—about.html, other pages, css/, and assets—lives in Amazon S3; Amazon CloudFront serves it over HTTPS to users and browsers. The Online Atlas wiki is powered by API Gateway and AWS Lambda. Lambda reads and writes Amazon DynamoDB tables (WikiPages, WikiRevisions, WikiComments) for resort pages and edits. Map data can optionally come from the backend S3 GeoParquet layer.

Backend

Data pipeline: from code to map

The data pipeline runs on AWS. Code in GitHub is built and pushed as container images to Amazon ECR; GitHub Actions drives CI/CD. Amazon ECS Fargate runs the pipeline jobs, which write processed data into Amazon S3—public GeoParquet in combined/ for the frontend map, and versioned Iceberg tables in iceberg/ for analytics. AWS Glue provides the Data Catalog; Athena and Spark query the data. The frontend map consumes the public GeoParquet from S3.

AWS Backend: GitHub, GitHub Actions, ECR, ECS Fargate, S3 GeoParquet and Iceberg, Glue, Athena/Spark, Frontend (map)

Jonathan Witcoski

Solo creator of Global Ski Atlas

Global Ski Atlas is a solo project by Jonathan Witcoski. To learn more about me and my other projects, visit witcoskitech.com or connect on LinkedIn.

Jonathan Witcoski
Ski mountains

Why This Was Started

Standardized resort information for skiers

The inspiration came from Storm Skiing, skimap.org, and openskimap.org. I started this due to the lack of standardized resort information—custom maps make it hard to compare. The atlas compiles statistics using OpenStreetMap and QGIS so skiers can compare resorts fairly.

Built with React & MapLibre

Modern, interactive maps and UIs

Maps are powered by MapLibre, loading GeoParquet data for fast, client-side rendering. Several parts of the site use React for responsive UIs—including the resort comparison tool and other data-rich views—so you get component-based interfaces that work well across devices.

React and MapLibre: interactive maps with GeoParquet and component-based UIs
Vector Scope AI – Collaborative map updates for agencies, ArcGIS and GeoParquet data lakes

Vector Scope

ESRI and open-source geospatial integration

Vector Scope uses Global Ski Atlas as a case study for integrating ESRI and open-source geospatial—Sedona, Iceberg, and GeoParquet—with modern web mapping. Whether you need web apps, data pipelines, or lakehouse-style GIS, get in touch to discuss your project.

Visit Vector Scope