﻿---
title: Tutorial: Index GeoJSON data
description: In this tutorial, you’ll build a customized map that shows the flight path between two airports, and the lightning hot spots on that route. You’ll learn...
url: https://www.elastic.co/elastic/docs-builder/docs/2575/explore-analyze/visualize/maps/indexing-geojson-data-tutorial
products:
  - Kibana
applies_to:
  - Elastic Cloud Serverless: Generally available
  - Elastic Stack: Generally available in 9.0+
---

# Tutorial: Index GeoJSON data
In this tutorial, you’ll build a customized map that shows the flight path between two airports, and the lightning hot spots on that route. You’ll learn to:
- Import GeoJSON files into Kibana
- Index the files in Elasticsearch
- Display the data in a multi-layer map


## Before you begin

This tutorial requires you to download the following GeoJSON sample data files. These files are good examples of the types of vector data that you can upload to Kibana and index in Elasticsearch for display in  Maps.
- [Logan International Airport](https://raw.githubusercontent.com/elastic/examples/master/Maps/Getting%20Started%20Examples/geojson_upload_and_styling/logan_international_airport.geojson)
- [Bangor International Airport](https://raw.githubusercontent.com/elastic/examples/master/Maps/Getting%20Started%20Examples/geojson_upload_and_styling/bangor_international_airport.geojson)
- [Lightning detected](https://raw.githubusercontent.com/elastic/examples/master/Maps/Getting%20Started%20Examples/geojson_upload_and_styling/lightning_detected.geojson)
- [Original flight path](https://raw.githubusercontent.com/elastic/examples/master/Maps/Getting%20Started%20Examples/geojson_upload_and_styling/original_flight_path.geojson)
- [Modified flight path](https://raw.githubusercontent.com/elastic/examples/master/Maps/Getting%20Started%20Examples/geojson_upload_and_styling/modified_flight_path.geojson)

The data represents two real airports, two fictitious flight routes, and fictitious lightning reports. You don’t need to use all of these files. Feel free to work with as many files as you’d like, or use valid GeoJSON files of your own.

## Create and set up a map

1. [Create a new map](/elastic/docs-builder/docs/2575/explore-analyze/visualize/maps/maps-getting-started#maps-create).
2. Zoom in on the New England area in the northeast United States.
   You’re adding flight paths to this area, and this sets up the map for a good view of the data.
   ![fu gs new england map](https://www.elastic.co/elastic/docs-builder/docs/2575/explore-analyze/images/kibana-fu_gs_new_england_map.png)


## Upload and index GeoJSON files

For each GeoJSON file you downloaded, complete the following steps:
1. Click **Add layer**.
2. From the list of layer types, click **Upload file**.
3. Using the File Picker, upload the GeoJSON file.
   Depending on the geometry type of your features, this will auto-populate **Index type** with either [geo_point](https://docs-v3-preview.elastic.dev/elastic/docs-builder/docs/2575/reference/elasticsearch/mapping-reference/geo-point) or [geo_shape](https://docs-v3-preview.elastic.dev/elastic/docs-builder/docs/2575/reference/elasticsearch/mapping-reference/geo-shape) and **Index name** with `<file name>`.
4. Click **Import file**.
   You’ll see activity as the GeoJSON Upload utility creates a new index and data view for the data set. When the process is complete, you should receive messages that the creation of the new index and data view were successful.
5. Click **Add layer**.
6. In **Layer settings**, adjust settings and [properties](https://www.elastic.co/elastic/docs-builder/docs/2575/explore-analyze/visualize/maps/maps-vector-style-properties) as needed.
7. Click **Keep changes**.
8. Once you’ve added all of the sample files, [save your map](/elastic/docs-builder/docs/2575/explore-analyze/visualize/maps/maps-getting-started#maps-save).
   At this point, you could consider the map complete, but there are a few additions and tweaks that you can make to tell a better story with your data.
   ![fu gs flight paths](https://www.elastic.co/elastic/docs-builder/docs/2575/explore-analyze/images/kibana-fu_gs_flight_paths.png)


## Add a heatmap aggregation layer

Looking at the `Lightning detected` layer, it’s clear where lightning has struck. What’s less clear, is if there have been more lightning strikes in some areas than others, in other words, where the lightning hot spots are. An advantage of having indexed [geo_point](https://docs-v3-preview.elastic.dev/elastic/docs-builder/docs/2575/reference/elasticsearch/mapping-reference/geo-point) data for the lightning strikes is that you can perform aggregations on the data.
1. Click **Add layer**.
2. From the list of layer types, click **Heat map**.
   Because you indexed `lightning_detected.geojson` using the index name and pattern `lightning_detected`, that data is available as a [geo_point](https://docs-v3-preview.elastic.dev/elastic/docs-builder/docs/2575/reference/elasticsearch/mapping-reference/geo-point) aggregation.
3. Select `lightning_detected`.
4. Click **Add layer** to add the heat map layer "Lightning intensity".
   The remaining default settings are good, but there are a couple of settings that you might want to change.
5. Play around with the **Layer Style** > **Color range** setting.
   Again the default looks good, but feel free to choose a different color range.
6. When you’re finished modifying settings, click **Keep changes**.
   With your new lightning heat map layer, your map should look like this:
   ![fu gs lightning intensity](https://www.elastic.co/elastic/docs-builder/docs/2575/explore-analyze/images/kibana-fu_gs_lightning_intensity.png)


## Organize the layers

Consider ways you might improve the appearance of the final map. Small changes in how and when layers are shown can help tell a better story with your data. Here are a few final tweaks you might make:
- Update layer names
- Adjust styles for each layer
- Adjust the layer order
- Decide which layers to show at different zoom levels

When you’ve finished, again be sure to [save your work ](/elastic/docs-builder/docs/2575/explore-analyze/visualize/maps/maps-getting-started#maps-save).
Your final map might look like this:
![fu gs final map](https://www.elastic.co/elastic/docs-builder/docs/2575/explore-analyze/images/kibana-fu_gs_final_map.png)