AN ACR PLT TAXIED ACROSS AN INFIELD AREA AT NIGHT WHEN TWO BLUE LIGHTS APPEARED TO EXTEND TXWY G2 STRAIGHT INTO THE LAS NORTH RAMP.

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WHEN LNDG RWY 25L AT LAS; WE ORDINARILY TURN OFF AT TXWY A6 AND HOLD SHORT OF RWY 25R AT TXWY A6. THIS NIGHT; HOWEVER WE WERE INSTRUCTED TO TAXI W ON TXWY A AND HOLD SHORT OF RWY 25R AT INTXN A7 WHICH WE DID. AFTER BEING CLEARED TO CROSS RWY 25R WE WERE INSTRUCTED BY LAS GND TO TAXI VIA Z AND G2 AND TOLD TO CONTACT LAS RAMP CTL WHICH WE DID. LAS RAMP CTL CLRED US 'STRAIGHT IN TO RAMP' VIA G2 FOR OUR PARKING SPOT AT GATE. HIS VERBIAGE 'STRAIGHT IN TO THE RAMP' ALONG WITH THE SERIES OF BLUE TXWY LIGHTS AHEAD GAVE THE APPEARANCE THAT THIS TXWY WENT STRAIGHT IN. HOWEVER; AT THE FAR END IT IS NECESSARY TO MAKE AN S TURN TO THE L AND BACK TO THE R TO STAY ON THE TXWY. THE FAR (END 4 BLUE LIGHTS) 4 BLUE LIGHTS (2 ON THE R AND 2 ON THE L) ARE ALIGNED WITH G2 BUT ARE ACTUALLY PART OF THE TAXI LIGHTS INVOLVED IN OUTLINING A TAXI ISLAND N OF G. WE TAXIED PERFECTLY THRU (BETWEEN) THE TWO ON THE R; TWO ON THE L THRU THE ISLAND ON HARD GND. NO DAMAGE TO THE ACFT OR ARPT. RED FACE FOR THE PLT! RECOMMEND PAINTING HASH MARKS ON ISLAND TO PREVENT A SIMILAR OCCURRENCE IN THE FUTURE. ALSO; POSSIBLY SMALL MARKER FLAGS. I HAVE BEEN TOLD THAT THIS WAS NOT THE FIRST TIME THAT THIS HAS HAPPENED AT THIS ARPT. MIGHT PREVENT A FUTURE OCCURRENCE. THIS OCCURRED AT NIGHT.CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THAT HIS ACFT'S TAXI LIGHT DID NOT ILLUMINATE THE GND BUT APPEARED TO POINT MORE UPWARD. AS A RESULT THE FOUR BLUE TXWY LIGHTS STUCK UP MORE THAN THE SURROUNDING TARMAC AND MADE THE INFIELD AREA LOOK LIKE A NORMAL TXWY. THE ONLY ABNORMAL THING ABOUT THE TAXI WAS THE TXWY APPEARED TO MAKE A SLIGHT DIP AS THEY TAXIED BETWEEN THE LIGHTS. THE RPTR DID WRITE THE TXWY EXCURSION IN THE ACFT LOGBOOK BUT MAINT FOUND NO DAMAGE AND THE ACFT WAS RETURNED TO SERVICE.