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

Hi, first, thanks for a fine research tool. It's been very useful. Second, where does the info that makes the maps come from? I'm doing some research into my local park and wondered where the information about the boundaries came from?

asked 09 Aug '13, 20:45

focphelp's gravatar image

accept rate: 0%

You can tell the user ID of the person who did the edits and when they did them. On the left side of the map is a layers icon. Clicking on that will show a check box for data. You can see the various items and select individual ones to get more information about it. For example Cowan Park shows, among other things:

History for Cowan Park Details

Edited by drnoble at 2012-12-16T15:58:50Z
Edited by Filling in the blanks at 2008-04-27T08:42:06Z
Edited by Filling in the blanks at 2008-04-26T16:37:21Z
Edited by Filling in the blanks at 2008-04-07T08:17:01Z

With JOSM (and maybe other editors but I mostly use JOSM) the object's edit history is also available and you can look at things like the check-in comment which, for the latest "drnoble" edit, is "Around Cowan Park, Barrhead from GPS survey/bing". So there you have it - GPS combined with Bing imagery.

There are web tools for looking up information about the contributors and where else they've made contributions. You can then contact the contributor and clarify where they got the information from if they haven't been as descriptive as you'd like with the "source" key value.

permanent link

answered 09 Aug '13, 21:05

n76's gravatar image

accept rate: 17%

edited 09 Aug '13, 21:15

Frederik%20Ramm's gravatar image

Frederik Ramm ♦


"On the left side of the map"? The "other" left?

Also, if you have the History shown above you can click "Details" to see the details of what nodes and what tags made up each version of the way. From there you can click on the relevant changeset id to see the check in comment, e.g.

(09 Aug '13, 21:27) EdLoach ♦

Follow this question

By Email:

Once you sign in you will be able to subscribe for any updates here



Answers and Comments

Markdown Basics

  • *italic* or _italic_
  • **bold** or __bold__
  • link:[text]( "title")
  • image?![alt text](/path/img.jpg "title")
  • numbered list: 1. Foo 2. Bar
  • to add a line break simply add two spaces to where you would like the new line to be.
  • basic HTML tags are also supported

Question tags:


question asked: 09 Aug '13, 20:45

question was seen: 2,246 times

last updated: 09 Aug '13, 21:27

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