BTA460 BTA358 BTA228 BTA250 BTA050 BTA482 BTA425 BTA038 BTA038 BTA468 Umatilla Morrow Gilliam Walla Walla Columbia Federal Communications Commission Wireless Telecommunications Bureau Mobility Division Based on Material Copyright (c) 1992 Rand McNally & Company. Rights granted pursuant to license from Rand McNally & Company. North America Datum 1983 CW-BTA460-E BTA Boundary Full County For Auction Partial County For Auction BTA460 Oregon Idaho Nevada Washington California Montana Attachment B 1 2