Uma opção seria usar o ponto do folheto em poly (leaflet.pip), disponível no Mapbox: https://www.mapbox.com/mapbox.js/example/v1.0.0/point-in-polygon/
Ou como um plugin do folheto: https://github.com/mapbox/leaflet-pip
O violino aqui: http://jsfiddle.net/TnX96/136/ mostrará exatamente como isso funcionaria. Ou veja o código abaixo ....
HTML certifique-se de incluir a biblioteca PIP:
<script src='https://api.tiles.mapbox.com/mapbox.js/plugins/leaflet-pip/v0.0.2/leaflet-pip.js'></script>
Javascript:
var map = new L.Map('map', {center: new L.LatLng(51, -100), zoom: 4});
var osm = new L.TileLayer('http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png');
var ggl = new L.Google();
var ggl2 = new L.Google('TERRAIN');
map.addLayer(osm);
map.addControl(new L.Control.Layers( {'Street Maps':osm, 'Satellite':ggl, 'Terrain':ggl2}, {}));
function handleClick(e) {
var html = '';
var match = leafletPip.pointInLayer(
// the clicked point
e.latlng,
// this layer
streets,
// whether to stop at first match
false);
if (match.length) {
for (var i = 0; i < match.length; i++) {
html += "<br>"+"_____"+
"<br><b>" + match[i].feature.properties.title + ", " + match[i].feature.properties.subtitle + ":</b>" +
"<br>Scale: " + match[i].feature.properties.Scale +
"<br>Year Published: " + match[i].feature.properties.year +
"<br><br><b>URL for map:</b> <a>" + match[i].feature.properties.location2 + "</a>"+
"<br><b>URL for cropped, georeferenced map:</b> <a>"+ match[i].feature.properties.location1 + "</a>"+
"<br><b>URL for KML:</b> <a>" + match[i].feature.properties.location3 +"</a>"
}
}
if (html) {
map.openPopup(html, e.latlng);
}
}
var streets = new L.geoJson(histMap)
.on('click', handleClick)
.addTo(map);