BL-1, 522828.473, 1547114.138, 490.61, Local      
BL-2, 522292.216, 1547103.342, 471.86, Local      
BL-3, 521934.390, 1546987.985, 463.23, Local      
BL-4, 521650.884, 1546831.076, 467.15, Local