CL65 CAPT HAS DIFFICULTY DETERMINING THE CLRNC ROUTING DURING TAXI OUT DUE TO SPECIFIC HELPFUL NOTES HE HAD INADVERTENTLY HIDDEN FROM VIEW.

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IN ORDER TO MAKE THE TAXI DIAGRAMS FOR IAH MORE USER-FRIENDLY; I TOOK THEM TO ENLARGE THE PORTIONS WE TYPICALLY USE; SPECIFICALLY THE NE CORNER FROM GATES TO RWY 15L WHERE NUMEROUS TXWYS INTERSECT. THE RAMP AREA WAS ALSO ENLARGED AND GRAPHICALLY DEPICTS BOTH SPOTS 1 AND 2; BUT DOES NOT SHOW A CTR TAXI LANE. THE CTR LANE IS REFED ONLY BY A NOTE ON THE BOTTOM R OF THE PAGE WITH AN ARROW EXTENDING TO THE S RAMP AREA. I HAD HIGHLIGHTED THIS NOTE; BUT IT WAS HIDDEN FROM VIEW WHEN I FOLDED THE ENLARGED DIAGRAM IN HALF AND PLACED IT UNDER MY CHART CLIP. IN HINDSIGHT; I SHOULD HAVE REWRITTEN THAT NOTE; AS I DID OTHER PERTINENT NOTES; INTO THE CHART AREA THAT WOULD BE CONTINUOUSLY VISIBLE. AS IT HAPPENED; WE PUSHED NOSE W FOR RWY 15L. RAMP CLRED US TO SPOT 1. I CROSSED THE FIRST TAXI LANE (THAT LED TO SPOT 2) THEN FOLLOWED THE NEXT TAXI LANE TO WHAT I EXPECTED TO BE SPOT 1. BUT AS I ROLLED UP TO THE END; THE LANE TERMINATED IN A TRIANGLE LABELED 'B747' ETC. I LOOKED AT THE TARMAC TO MY L AND THERE WAS SPOT 1. WE HAD FOLLOWED THE CTR TAXI LANE. THE FO; UNAWARE OF THE MISTAKE; CALLED ATC SAYING WE WERE AT SPOT 1. ATC ISSUED TAXI INSTRUCTIONS TO RWY 15L. SINCE NO OTHER ACFT WERE OBSERVED ANYWHERE NEAR US ON THE RAMP; WE TAXIED WITH A SLIGHT L JOG TOWARD SPOT 1 AND ALONG THE SPECIFIED RTE TO RWY 15L. ATC MADE NO COMPLAINTS.