# Size of geohash circle when creating a Map visualisation
**URL:** https://discuss.elastic.co/t/size-of-geohash-circle-when-creating-a-map-visualisation/195202
**Category:** Kibana
**Created:** [August 14, 2019, 12:33pm UTC](https://discuss.elastic.co/t/size-of-geohash-circle-when-creating-a-map-visualisation/195202 "2019-08-14T12:33:10Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@bthomas](https://discuss.elastic.co/u/bthomas)
#### Post date: [August 14, 2019, 12:33pm UTC](https://discuss.elastic.co/t/size-of-geohash-circle-when-creating-a-map-visualisation/195202/1 "2019-08-14T12:33:10Z")
Hi,
I'm trying to create a map visualisation (ideally a heatmap, but shaded circles will do nicely) based on a geo\_point field in my index. I've got a small index (300~ documents) that contain a "Location" geo\_point field, and other fields such as temperature.
So far, I've been able to create a visualisation of this data by going to
Visualize \> Create New Visualisation \> Coordinate Map
Then, under Metrics selecting (for example) Average:Temperature, and under Buckets by Geo coordinates _geohash_ aggregation.
The result is several large circles, about seven in total coverage a considerable distance (200m). This is not good, and would instead prefer smaller circles of maybe a few meters in size.
I'm quite new to Elasticsearch and Kibana so I think I might be missing how to set the size of the geo coordinate _aggregation_ Bucket - but I can't find a way how to change it.
- I should also add, if I view my index via the _Maps_ tool (rather than _Visualize_) I can achieve what I require - small map points from my index, but can't see how I can display my metric; temperature.
Thanks for any help
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### Author:  [@Marius\_Dragomir](https://discuss.elastic.co/u/Marius_Dragomir)
#### Post date: [August 14, 2019, 4:00pm UTC](https://discuss.elastic.co/t/size-of-geohash-circle-when-creating-a-map-visualisation/195202/2 "2019-08-14T16:00:00Z")
I would use the Maps tool, since it's the most recent and complete addition to Kibana. For how to use it I highly recommend this webinar to everybody: [https://www.elastic.co/webinars/elastic-maps-for-geospatial-analysis](https://www.elastic.co/webinars/elastic-maps-for-geospatial-analysis)
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [September 11, 2019, 4:11pm UTC](https://discuss.elastic.co/t/size-of-geohash-circle-when-creating-a-map-visualisation/195202/3 "2019-09-11T16:11:46Z")
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