CartTerra

What is CartTerra?

CartTerra is a terrain generator built around high resolution US elevation data, including USGS 3DEP and some state LiDAR datasets. You draw an area of any shape on the map or upload a boundary file such as KML, Shapefile or GeoJSON, and it previews the terrain in 3D before you commit.

The tool shows the relief and roughness of your area, lets you raise or lower the output resolution, and warns you when a mesh is likely to be too heavy for a slicer. You can download a lower detail preview STL for free. The full resolution model is a flat price per download, and the FAQ says that price covers your choice of STL, 3MF and GLB. Payment runs through PayPal or a card via Stripe, and download links expire after 48 hours.

Coverage is the main limit, since the data is focused on the United States. It is a strong pick for detailed prints of US parks, ski areas and properties where Terrain2STL style 90 m data is too coarse.

What you can make

• High detail US terrain models
• Property and parcel terrain
• National park relief models
• Custom shaped terrain from boundary files

How to use CartTerra

1. Draw an area on the map or upload a boundary file
2. Check the preview and adjust resolution
3. Download the free preview or buy the full model
4. Slice and print