OpenLayers - USGS National Atlas - Native American Lands WMS

gistfile1.txt

// from USGS National Atlas: http://webservices.nationalatlas.gov/wms/boundaries?SERVICE=WMS&REQUEST=GetCapabilities
  naLayer = new OpenLayers.Layer.WMS( 
    "Native American Lands", 
    "http://webservices.nationalatlas.gov/wms?",
    {layers: "indlan", version: '1.3.0', transparent: 'TRUE'},
    {isBaseLayer: false, visibility: false, opacity: .5}
  );
  map.addLayer(indlanLayer);