mntopo viewer

Interactive topographic map viewer for visualizing DEM files and analyzing terrain elevation data.

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About This Tool

The Mntopo Viewer is a comprehensive online tool for visualizing and analyzing topographic data. Upload Digital Elevation Model (DEM) files in common formats (GeoTIFF, ASCII Grid, etc.) or enter geographic coordinates to generate interactive topographic maps with contour lines, elevation color gradients, and 3D terrain visualization. The tool calculates elevation profiles along user-defined paths, extracts key terrain metrics (min/max elevation, slope, aspect), and provides detailed analysis of topographic features. Perfect for hikers, geologists, engineers, and GIS professionals who need to understand terrain characteristics.

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How to Use

Upload a DEM file using the file upload area or enter latitude/longitude coordinates manually.
Adjust visualization settings like contour interval, color scheme, and hillshade intensity.
Click 'Generate Topographic Map' to create the visualization.
Draw a path on the map to generate an elevation profile.
View detailed terrain analysis results including elevation statistics and slope calculations.
Export the visualization as PNG or download the elevation data as CSV.

Frequently Asked Questions

Find Quick Answers

What file formats are supported for DEM upload?

The tool supports GeoTIFF (.tif, .tiff), ASCII Grid (.asc, .txt), and ESRI Grid formats. Files should contain proper geospatial metadata for accurate coordinate referencing.

Can I use the tool without uploading files?

Yes, you can enter latitude and longitude coordinates manually to generate topographic maps using built-in elevation data for most regions worldwide.

What terrain metrics does the tool calculate?

The tool calculates minimum/maximum/mean elevation, slope (degrees/percentage), aspect (direction), roughness, and generates elevation profiles with distance-elevation data.

Is there a limit to the file size I can upload?

The tool can process DEM files up to 100MB. For larger files, consider cropping to your area of interest or using the coordinate input method instead.

Need to run multiple calculations?

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