COMMUTER MAKES ILS APCH WITH ILS OFFSET FROM RWY. DISORIENTING SINCE IN AND OUT OF CLOUDS.

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ALTHOUGH I HAVE FLOWN INTO SHERIDAN; WY; SEVERAL TIMES; THIS WAS MY FIRST ILS THERE. WX WAS RAGGED CEILINGS; APPROX 2000 FT AGL WITH VIRGA AND SNOW SHOWERS. UPON SIGHTING THE ARPT (APPROX 4-6 MI OUT) I NOTED WE WRE NOT ALIGNED WITH THE RWY. CONFUSION FOLLOWED AS WE RECHKED THE APCH PLATES AND NAV INSTS. WE APPEARED TO BE L OF CTRLINE (1/4 MI?). LOOKING AT THE PLATE; I THOUGHT I MIGHT BE MISTAKING A RAMP AREA ON THE SE CORNER OF THE ARPT BECAUSE WE COULD ALSO NOW SEE A RWY OFF TO OUR L. THE RWY TO THE L IS A NEW RWY NOT YET OPEN. ALL OF THIS WAS VERY DIFFICULT TO ASCERTAIN AS WE WERE IN AND OUT OF THE OVCST. I'VE ATTACHED A COPY OF THE APCH PLATE WITH THE NEW RWY SKETCHED IN (BEST GUESS). AFTER LNDG I TALKED WITH THE FSS WHICH INFORMED ME THAT DUE TO ANTENNA LOCATION REQUIREMENTS; THE ILS BRINGS YOU IN L OF COURSE. THIS IS NOT NOTED ON THE APCH PLATE IN ANY WAY AND PROBABLY ISN'T REQUIRED OR IT WOULDN'T BE CLASSIFIED AN ILS ANYWAY. THE APCH PLATE ALSO DOES NOT DEPICT THE NEW RWY WHICH LOOKS TO BE NEAR COMPLETION. I WOULD RECOMMEND THE APCH PLATE CARRY A NOTE ABOUT THE DEG OF OFFSET OF THE LOC; EVEN IF NOT REQUIRED. ALSO; I THINK THE NEW RWY SHOULD BE DEPICTED AS WELL SINCE ITS OUTLINE IS EASILY RECOGNIZABLE IN MVFR CONDITIONS. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR STATES THAT IN HIS DISCUSSION WITH FSS SPECIALIST HE WAS INFORMED THAT THE ANTENNA COULD NOT BE PLACED IN DIRECT ALIGNMENT WITH THE RWY IT BRINGS THE ACFT IN L OF COURSE. IF THEY HAD MADE AN APCH DOWN TO MINIMUMS; IT MIGHT NOT HAVE BEEN A PROB. BUT THEY PICKED UP THE ARPT ABOUT 6 MI OUT AND THEN SPOTTED IT IN AND OUT OF CLOUDS SO IT WAS VERY OBVIOUS HOW FAR OFF FROM CTRLINE THEY WERE. IN FACT IT WAS HARD TO REALIZE THAT WAS THE RWY WITH THE NEW RWY SO WELL PAVED AND WIDER. RPTR BELIEVES THAT IF THEY HAD SIGHTED RWY CLOSER IN IT MIGHT NOT HAVE BEEN SO OBVIOUS. HE STRONGLY BELIEVES THAT A NOTE ON THE APCH PLATE WOULD BE HELPFUL. ALSO WONDERS WHAT CHANGES MAY OCCUR WITH THE OPENING OF THE NEW RWY?