In this video, we will show you how to collect data with ArcGIS Collector and Reach with centimeter accuracy. We need an Android device and Reach rover. In this example, we use Reach RS2, but the workflow is the same for all Reach devices. Before we start, make sure you’ve installed ArcGIS collector on an Android smartphone or tablet and have a map prepared on your account on ArcGIS.com. First, configure Reach to transmit its coordinates to your Android device over Bluetooth. Watch this video to pair your receiver and Android device. The link is in the description below. Open ArcGIS Collector and open your map. Select Overflow and go into the Basemap tab to choose a map style. We will use OpenStreetMap. From now on, you can see your real-time location on the chosen layer of the map. Let’s proceed with data collection. Press the “Plus” button. In this section, you will see all the tools prepared before work. There are tools for creating paths, polygons and point collection. Let’s check the tools for polygons. In our example, we collect the positional information of a skate park with all the ramps and rails. This information can be later used for site replanning, ramps redesign and renewal. Click on “Polygon layer”. Before collecting the data go to the Collect Settings tab and enter your required accuracy and streaming interval. Activate GPS averaging, choose the number of locations that will be used in the calculation. Remember, to create a polygon you would need at least three points. Now you can start collecting data with centimeter accuracy. To see your location on the map tap on the corresponding icon. Press Stream to collect the first point. If you want to add only specific points just go to the place and tap on My Location button. After the point is calculated go to the next spot. When all necessary points are added, tap on the checkmark to save the information. You can also write a description and attach a photo to your polygon. Now we’re going to the next object in this area. Do the same steps for all objects that you want to outline. When you’re done collection you can open the map with all the information on your PC and export collected data to other GIS or CAD apps. Thanks for watching!