demetrius is an open-source Python package that streamlines the assembly of high-resolution digital elevation models (DEMs) from USGS 3DEP data. It is designed for engineering, hydraulic modeling, and GIS professionals who require accurate elevation data for their workflows. The tool supports efficient data processing and integration into geospatial analysis pipelines.
demetrius sits in PulseGate's Frameworks & SDKs category. It focuses on automating the assembly of high-resolution digital elevation models from USGS 3DEP data for engineering and GIS workflows. It is built as an open-source project for GIS professionals and engineers. demetrius is open source under the MIT license. The product ships for the command line.
Behind demetrius is wsp-watertech, and the product first shipped in 2026. Development happens publicly on GitHub with 31 commits in the last 90 days. Key capabilities include DEM assembly, USGS 3DEP integration, and high-resolution output.
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