diff --git a/scripts/geodata/polygons/index.py b/scripts/geodata/polygons/index.py
index 67a311de..1662a541 100644
--- a/scripts/geodata/polygons/index.py
+++ b/scripts/geodata/polygons/index.py
@@ -1,13 +1,16 @@
 import fiona
+import geohash
 import os
 import rtree
 import ujson as json
 
-from collections import OrderedDict
+from collections import OrderedDict, defaultdict
 from shapely.geometry import Point, Polygon, MultiPolygon
 from shapely.prepared import prep
 from shapely.geometry.geo import mapping
 
+from geodata.polygons.area import polygon_bounding_box_area
+
 DEFAULT_POLYS_FILENAME = 'polygons.geojson'