* Hard to paste the entire form code and AJAX callbacks... here is the `farm_map_build`...
```
    $map = farm_map_build('ecostate-contract-map', TRUE, 'Area Map', TRUE);
    
    $area_ids = array();
    $area_ids[] = $area->tid;
    $wkt = farm_area_extract_geoms($area_ids)[0];
    
    $form['ecostate']['area_info']['area_details']['area_map'] = array(
        '#type' => 'farm_map',
        '#map_name' => 'ecostate-contract-map',
        '#wkt' => $wkt,
        '#edit' => FALSE,
    );


```