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Can anyone point me to a source of High resolution Elev...

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Hi, what I am looking for is any source for Digital elevation Data with a resolution higher than 3 arc/second (100 m) for the north-east region of South america, Country: COLOMBIA, area surrounduing Bogota, the main airport there is SKBO.To give you an estimate of the coordinates I will need at least 2 square tiles of 1 degree being the Northwest corners of the tiles: N3W75 and N3W74.What I have found is STRM data (3 arc second/100m) but the results are not what I expected.I have done a extensive search without success.Thanks

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