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I found and reported some strange errors in the underlying topographical layer (visible as contour lines in cycle map). reports can be found here, here and a lot around there.

how can i correct those or where do i have to report errors on these height data? thanks in advance

asked 13 Nov '13, 08:46

xox's gravatar image

accept rate: 0%

closed 13 Nov '13, 11:03

aseerel4c26's gravatar image

aseerel4c26 ♦

The question has been closed for the following reason "Duplicate Question -" by aseerel4c26 13 Nov '13, 11:03

Elevation data is largely gathered from the NASA SRTM project (yes, that NASA), not from survey. It is not held by OpenStreetMap, and OpenStreetMap has no way to correct it.

If you wish to raise a systemic problem with the OpenCycleMap rendering, you can do so at, making sure to select the correct 'component'. Use your OpenStreetMap username and password to log in.

That said, it's well known that there are "voids" (holes) in the SRTM data - it's just a limitation you have for getting a lovely free source of elevation data from the Space Shuttle guys.

permanent link

answered 13 Nov '13, 10:05

Richard's gravatar image

Richard ♦
accept rate: 18%

edited 13 Nov '13, 10:07


See also answers to "Topographical data is wrong".

(13 Nov '13, 10:16) Frederik Ramm ♦

thanks for clarification. so i will close my bug reports as 'invalid' because there is nothing one can do about it.

(13 Nov '13, 11:02) xox

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question asked: 13 Nov '13, 08:46

question was seen: 3,136 times

last updated: 13 Nov '13, 11:03

NOTICE: is no longer in use from 1st March 2024. Please use the OpenStreetMap Community Forum