var map = L.map('map')

    L.control.layers(
        {
            "OpenStreetMap": L.tileLayer('https://c.tile.openstreetmap.org/{z}/{x}/{y}.png', 
            {
                maxZoom: 18,
                attribution: 'Map data © <a href="https://www.openstreetmap.org/copyright" target="_blank">OpenStreetMap</a> contributors, '
            }).addTo(map),
            "地理院 標準地図": L.tileLayer('https://cyberjapandata.gsi.go.jp/xyz/std/{z}/{x}/{y}.png', 
            {
                maxZoom: 18,
                attribution: 'Map data <a href="https://maps.gsi.go.jp/development/ichiran.html" target="_blank">国土地理院</a>'
            }),
            "地理院 淡色地図(Zoom2～)": L.tileLayer('https://cyberjapandata.gsi.go.jp/xyz/pale/{z}/{x}/{y}.png', 
            {
                minZoom: 2,
                maxZoom: 18,
                attribution: 'Map data <a href="https://maps.gsi.go.jp/development/ichiran.html" target="_blank">国土地理院</a>'
            }),
            "地理院 English(Zoom2～)": L.tileLayer('https://cyberjapandata.gsi.go.jp/xyz/english/{z}/{x}/{y}.png', 
            {
                minZoom: 2,
                maxZoom: 18,
                attribution: 'Map data <a href="https://maps.gsi.go.jp/development/ichiran.html" target="_blank">国土地理院</a>'
            }),
            "地理院 陰影起伏(Zoom2～)": L.tileLayer('https://cyberjapandata.gsi.go.jp/xyz/hillshademap/{z}/{x}/{y}.png', 
            {
                minZoom: 2,
                maxZoom: 18,
                attribution: 'Map data <a href="https://maps.gsi.go.jp/development/ichiran.html" target="_blank">国土地理院</a>'
            }),
        }
    ).addTo(map);

    map.setView([38.891, 139.824], 16);
