Worked on enhancing geographic data modeling by extending the base land schema in the OvertureMaps/schema repository. Focused on schema definition using YAML, the work introduced new land type classifications, including crater, meteor_crater, and volcanic_caldera_rim, to support more detailed terrain representation. This schema enhancement enables richer downstream analytics, improved risk assessment, and more accurate mapping workflows by capturing previously unsupported landforms. The approach laid a technical foundation for future terrain analytics and visualization features, emphasizing maintainability and extensibility. No bug fixes were required during this period, reflecting a targeted and well-scoped feature implementation within the schema definition domain.