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<html>
<head>
<script src="https://api.mqcdn.com/sdk/mapquest-js/v1.3.2/mapquest.js"></script>
<link type="text/css" rel="stylesheet" href="https://api.mqcdn.com/sdk/mapquest-js/v1.3.2/mapquest.css"/>
<script type="text/javascript">
window.onload = function() {
L.mapquest.key = '8nIoYUx9GyjZsdehJySzjprSvZIqgM42';
var map = L.mapquest.map('map', {
center: [39.7392, -104.9903],
layers: L.mapquest.tileLayer('map'),
zoom: 6
});
L.marker([39.7392, -104.9903], {
icon: L.mapquest.icons.marker(),
draggable: false
}).bindPopup('Denver, CO').addTo(map);
L.circle([38.8339, -104.8214], { radius: 20000 }).addTo(map);
var denverLatLngs = [
[36.99, -102.05],
[37, -109.05],
[41, -109.05],
[41, -102.05]
];
L.polygon(denverLatLngs, {color: 'red'}).addTo(map);
};
</script>
</head>
<body style="border: 0; margin: 0;">
<div id="map" style="width: 100%; height: 530px;"></div>
</body>
</html>