# Viet Nam coordinate system in RiskScape

**URL:** <https://community.riskscape.org.nz/t/viet-nam-coordinate-system-in-riskscape/234>\
**Category:** Community\
**Created:** [1 December 2025 21:55 UTC](https://community.riskscape.org.nz/t/viet-nam-coordinate-system-in-riskscape/234 "2025-12-01T21:55:17Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![shenglin](https://avatars.discourse-cdn.com/v4/letter/s/df705f/32.png) [@shenglin](https://community.riskscape.org.nz/u/shenglin)\
**Post date:** [1 December 2025 21:55 UTC](https://community.riskscape.org.nz/t/viet-nam-coordinate-system-in-riskscape/234/1 "2025-12-01T21:55:17Z")

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Hi,

I’m in the process of creating a step-by-step guideline for our Vietnam partners for MFAT funded dam safety project, but I’ve run into an issue.

I’m working with the **vn2000\_108mui3** coordinate system, which is used for Dak Lak and Phu Yen Provinces in central/southern Vietnam—two of our five case study provinces. This coordinate system is also equivalent to **EPSG:9210** , according to Google.

However, when I try to run RiskScape, I encounter the following error message. Is this something that will be addressed in a future update of the RiskScape engine, or does it simply mean that **EPSG:9210** is not currently supported within the library?

Looking forward to your thoughts!

Cheers

ShengLin

Note that I defined it in bookmark as below,

[bookmark Building]  
description = Dak Lak mockup buildings  
location = data/DL\_bldg\_mk\_vn2000.shp  
crs-name = EPSG:9210

_Could not find a Coordinate Reference System (CRS) called ‘EPSG:9210’ - check the CRS name carefully or try searching for it online. Make sure you have included the authority as well as the code, e.g. ‘EPSG:2193’ vs ‘2193’. For WGS84, try ‘EPSG:4326’ (lat, long) or ‘CRS:84’ (long, lat). Most valid EPSG codes should work with RiskScape._

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**Author:** ![nickg](https://yyz2.discourse-cdn.com/flex036/user_avatar/community.riskscape.org.nz/nickg/32/4_2.png) [@nickg](https://community.riskscape.org.nz/u/nickg)\
**Post date:** [2 December 2025 02:27 UTC](https://community.riskscape.org.nz/t/viet-nam-coordinate-system-in-riskscape/234/2 "2025-12-02T02:27:24Z")

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Hi ShengLin,

It looks as though that code is not in RiskScape’s database, but assuming it’s a transverse mercator projection (it looks to be), there shouldn’t be any reason I can see why the projection itself shouldn’t work.

Does the shapefile have a `prj` file, e.g. `data/DL_bldg_mk_vn2000.prj`?

If it does, first try removing the `crs-name` parameter from your bookmark and see if your model runs. If it runs but you’re not getting any results (or you get an error) it’s possible that the provided `prj` file is in a non-standard format. In that case, you can replace the contents of that file [with this](https://epsg.io/9210.wkt) using a text editor. That provides the definition of the projection in a format that RiskScape can understand.

Let me know how you get on,

Nick

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**Author:** ![shenglin](https://avatars.discourse-cdn.com/v4/letter/s/df705f/32.png) [@shenglin](https://community.riskscape.org.nz/u/shenglin)\
**Post date:** [2 December 2025 04:13 UTC](https://community.riskscape.org.nz/t/viet-nam-coordinate-system-in-riskscape/234/3 "2025-12-02T04:13:39Z")

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Thanks for the quick tips, Nick!

Everything worked perfectly after removing the `crs-name`—both the inputs and outputs are now in the same locations and CRS.

Just for the record, the analysis did complete previously; the issue was that the results weren’t aligned correctly, likely due to a mix-up between the `crs-name` and the \*.prj file.

Cheers

ShengLin