diff --git a/types.go b/types.go
index 725c40c..a074627 100644
--- a/types.go
+++ b/types.go
@@ -80,8 +80,8 @@ type jsonBracket struct {
 }
 
 type jsonNamedBracket struct {
-	Bracket string `json:"bracket"`
-	Name    string `json:"name"`
+	Bracket jsonBracket `json:"bracket"`
+	Name    string      `json:"name"`
 }
 
 type jsonQueryResponse struct {
@@ -131,6 +131,12 @@ type geoData struct {
 	longitude float64
 }
 
+type namedBracket struct {
+	name string
+	min  float64
+	max  float64
+}
+
 type record struct {
 	accessCount    int
 	closestStn     string