| Sampling |
| North West corner Latitude: Longitude: |
| South East corner Latitude: Longitude: |
| Sampling Poinst: N-S axis: W-E axis: |
| Plot Options |
| Units: |
| Rounding for legend (decimal places): |
| Save/Load Cookie |
| Other Options |
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Go to the desired location in the map, set two markers by clicking the map to define a rectangle (or enter coordinates manually). Click the button [get data]. Optionally you can change the number of elevation samples you want in each direction, the more the better (max 400). You can also change the number of contours or set custom contour values. You can save some data in cookies, however there is a limit. Use the manual saving text areas below alternatively.
This service comes without any warranty whatsoever, including but not limited to functioning or correctness.
Resources: This service uses ArcGIS Map by Esri, the OpenStreetMap, Geocoding by Nominatim, Mapzen, Leaflet, jQuery and the CONREC contouring algorithm by Paul Bourke and Jason Davies.
Created by Christoph Hofstetter (christophhofstetter (at) gmail.com) 2013-2025If you want to have the contour maps as an individual layer (e.g. to create overlays) you can copy the code underneath the image below and save it as an svg file. Please note, as for now, the drawing below is square and you may want to stretch it to cover the actual area in a map.
| Download SVG file |
| Download KML file |
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Guide to Google Chrome Portable 32-Bit Offline Installer For users on older hardware or those needing a browser that runs without installation, the is a vital tool. This version allows you to carry your entire browsing experience on a USB drive or run it on systems with limited internet access. Why Choose the 32-Bit Offline Portable Version?
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While modern systems favor 64-bit, the 32-bit edition remains essential for:
Google typically prioritizes 64-bit downloads. To force a 32-bit offline version, follow these steps: Download and install Google Chrome - Computer
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