Washington, D.C. : U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Ocean Service ; [Riverdale, MD : NOAA Distribution Division, N/ACC3, National Ocean Service],
Vols. for <1989-> consult appropriate issue of Notices to airmen, NOTAMs, and flight information publications for supplemental data and current information.
Scale 1:500,000 ; Lambert conformal conic proj., standard parallels 41⁰20ʹ and 46⁰40ʹ (W 93⁰--W 85⁰/N 44⁰--N 40⁰).
Vol. for Nov. 5, 1998 has topographic data corrected to July 1998 and includes airspace amendments effective Oct. 8, 1998 and all other aeronautical data received by Sept. 10, 1998; chart becomes obsolete for use in navigation upon publication of next ed. scheduled for May 20, 1999.
Relief shown by contours, tints, and spot heights. Includes ancillary map of Milwaukee. Scale 1:250,000--<1989->. Includes location map and gradient tints diagram--<1989->. Shipping list no.: 99-0049-P. 57th ed., Nov. 5, 1998. Description based on: 38th ed. (May 4, 1989); title from panel.
maps : both sides, col. ; 96 x 137 cm., sheets 52 x 151 cm., folded to 26 x 13 cm.