I have asked Admin about this previously but the problem persists. When I search for items in Toronto (Ontario) the boundary given by iNaturalist is so badly drawn that the search misses out on much of Tommy Thompson Park, a 5km long peninsular jutting into Lake Ontario. I have not searched anywhere…

The simple polygon used for Southeast Texas excludes a large area of land along the border with Louisiana and the gulf coast. The East Texas polygon follows the state border and coastline, but includes many habitats and species not found in SE TX, so is pretty useless if you are only familiar with t…

This happens for a lot of European subdivisions too – the London boroughs are often shifted and distorted. Here’s Kingston, where the border is meant to follow the Thames until just west of Surbiton, (a few hundred metres out) and where the south is meant to follow the margins between that field and…

@paul_prior I think you imply that the problem with observations missing from a search has to do with an improperly created polygon. Tracking down who originally created and uploaded the polygon for any given place is quite difficult on iNat. It might have been staff; it might have been imported f…

Similarly, the place called “Oregon and Washington” omits a chunk of eastern/southern Oregon and the tip of the Olympic peninsula, but includes a chunk of Canada. Drives me nuts. [Picture1]

A similar problem is evident for the whole China. The roads as mapped are offset by several 100 m relative to the satellite imagery. For example, see: https://www.inaturalist.org/observations?place_id=6903&subview=map&verifiable=any The mapped roads and satellite imagery match perfectly on the Ru…

In your case, you can just use the two states with a comma in between. Like this: https://www.inaturalist.org/observations?place_id=10,46

[image] lesfreck1: A similar problem is evident for the whole China. the China GCJ-02 vs WGS84 issue is a completely different problem that has to do with Chinese laws and regs rather than the place boundaries defined in iNaturalist. [image] lesfreck1: It is more accurate to map observat…

So related to examples like the Toronto (Ontario), East Texas, and the Oregon-Washington polygons above, I have a question for staff: @tiwane Does staff have knowledge of the owner/originator of such custom and erroneous polygons? Based on some type of metadata associated with a polygon, can staff…

[image] gcwarbler: Does staff have knowledge of the owner/originator of such custom and erroneous polygons? Based on some type of metadata associated with a polygon, can staff tell/distinguish if it was imported from some third-party (e.g. web-origin), an iNat user, or some other source? Anyo…

Thanks. That answers part of my question to staff. However, non-user-created places lack any source information, such as, https://www.inaturalist.org/places/toronto https://www.inaturalist.org/places/greater-austin So my questions remains: How can we determine the source and/or editability of s…

Incorrect location boundaries

General

Topic		Replies	Views
Inaccurate town boundary results in missing observations for location Bug Reports	3	173	December 31, 2023
Wrong country in border region Bug Reports	40	832	August 21, 2024
Editing Pre-existing Location on iNat General	28	2672	March 15, 2020
Searching for observations in a city returns observations for a specific land feature within the city General web	49	1593	December 9, 2023
A series of observations on the border of Ukraine and Slovakia are unaccounted for by both countries, despite falling within the iNat borders designated for Ukraine Bug Reports web	12	423	January 3, 2024

Incorrect location boundaries

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