Selecting data spatially

To draw a polygon select the "Draw an area of the map" icon:

MapTools

 Next draw a polygon edges by clicking on the map, when your polygon is complete press the "Esc" key to finish drawing.

OnePolygon

 Discover will warn you that your results are out of date:

ExpressionWarning

 This just means that any results from before may have changed as a result of the new polygon. To find the data within this polygon, click the query button (shortcut ctrl+enter). Sites that are included in the results are highlighted in blue:

OnePolygonQueried

You can see in the above example, the well 6706/6-1 is just outside the defined region.The map tool also allows you to draw multiple polygon, for each polygon you draw a corresponding expression element is added to your query.