GIS Source Files for Southeastern Seoul Topographical Analysis. Version 1.

This dataset was collected or created as part of a study on ancient civilizations, specifically to verify the old topography of the southeastern region of Seoul, South Korea (including Songpa-gu and Gangdong-gu). 1925topographic_map_contour: Contour lines extracted from the 1925 topographic map (1:50,000). 1925topographic_map_river: Rivers extracted from the 1925 topographic map. drilling_survey_data_all: Subsurface drilling survey data provided by the Geotechnical Information Database System of the Korea Institute of Geoscience and Mineral Resources, organized by the author. drilling_survey_data_clay: A subset of the above data, showing only the locations of Pleistocene clay deposits. geological_map: Geological map (1:50,000) provided by the Geotechnical Information Database System of the Korea Institute of Geoscience and Mineral Resources. topographic_distribution_map: Topographic map (1:25,000) provided by the Korean Soil Information System of the Rural Development Administration.