Google has added the Dandi March story to its Google Earth Voyager, which features map data, storytelling and archival photographs.
Google claimed that many of these have never been released.
The 24-day journey started on March 12, 1930 to protest against the tax levy on salt by the British. The march added huge momentum to India's independence movement.
While 78 people began the almost 400 km-march with Gandhi, many more joined along the way.
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The story is told in the words of Mahatma Gandhi's great-grandson Tushar Gandhi, based on his family knowledge and his own retracing of the march in 2005, the statement said.
Google has created a montage of 22 slides covering each key stage of the journey to specific locations along the way, recounting what happened at that location along with a photograph taken at the time.
At any time, users can zoom in, and pan around the scene.