From 119be9fc2d0719c3f844cfb099e2c52faa8af4ce Mon Sep 17 00:00:00 2001
From: John Firebaugh <john.firebaugh@gmail.com>
Date: Fri, 29 Mar 2013 16:10:00 -0700
Subject: [PATCH] Add min/max zoom for Tiger 2012 layer

Otherwise everything goes gray at z20.
---
 data/imagery.json | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/data/imagery.json b/data/imagery.json
index a1878ab5a..b405077d6 100644
--- a/data/imagery.json
+++ b/data/imagery.json
@@ -52,6 +52,10 @@
         "name": " TIGER 2012 Roads Overlay",
         "template": "http://{t}.tile.openstreetmap.us/tiger2012_roads_expanded/{z}/{x}/{y}.png",
         "overlay": true,
+        "scaleExtent": [
+            16,
+            19
+        ],
         "subdomains": [
             "a",
             "b",