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Counties
Tennessee-North Carolina
Johnson | Carter | Unicoi | Greene | Cocke | Sevier | Blount | Monroe | Polk | Ashe | Watauga | Avery | Mitchell | Yancey | Madison | Haywood | Swain | Graham | Cherokee
Tennessee-Kentucky
Lake | Obion | Weakley | Henry | Stewart | Montgomery | Robertson | Sumner | Macon | Clay | Pickett | Scott | Campbell | Claiborne | Fulton | Hickman | Graves | Calloway | Trigg | Christian | Todd | Logan | Simpson | Allen | Monroe | Cumberland | Clinton | Wayne | McCreary | Whitley | Bell
Iowa-Illinois
Dubuque | Jackson | Clinton | Scott | Muscatine | Louisa | Des Moines | Lee | Jo Daviess | Carroll | Whiteside | Rock Island | Mercer | Henderson | Hancock
Kansas-Missouri
Cherokee | Crawford | Bourbon | Linn | Miami | Johnson | Wyandotte | Leavenworth | Atchison | Doniphan | Newton | Jasper | Barton | Vernon | Bates | Cass | Jackson | Clay | Platte | Buchanan | Andrew | Holt
Mississippi | New Madrid | Ballard | Carlisle | Hickman | Fulton
Kentucky-Ohio
Boyd | Greenup | Lewis | Mason | Bracken | Pendleton | Campbell | Kenton | Boone | Lawrence | Scioto | Adams | Brown | Clermont | Hamilton
Virginia-Maryland
Fairfax | Alexandria | Arlington | Loudoun | Prince George's | Montgomery | Frederick | Washington | Accomack | Worcester | Somerset
Tennessee-Georgia
Polk | Bradley | Hamilton | Marion | Fannin | Murray | Whitfield | Catoosa | Walker | Dade
Kentucky-West Virginia
Pike | Martin | Lawrence | Boyd | Mingo | Wayne
South Dakota-Minnesota
Minnehaha | Moody | Brookings | Deuel | Grant | Roberts | Rock | Pipestone | Lincoln | Yellow Medicine | Lac qui Parle | Big Stone | Traverse
Alabama-Florida
Houston | Geneva | Covington | Escambia | Baldwin | Jackson | Holmes | Walton | Okaloosa | Santa Rosa | Escambia
Maryland-Delaware
Cecil | Kent | Queen Anne's | Caroline | Dorchester | Wicomico | Worcester | New Castle | Kent | Sussex
Texas-Louisiana
Cass | Marion | Harrison | Panola | Shelby | Sabine | Newton | Orange | Jefferson | Caddo | De Soto | Sabine | Vernon | Beauregard | Calcasieu | Cameron
Florida-Georgia
Jackson | Gadsden | Leon | Jefferson | Madison | Hamilton | Columbia | Baker | Nassau | Seminole | Decatur | Grady | Thomas | Brooks | Lowndes | Echols | Clinch | Ware | Charlton | Camden
California-Oregon
Modoc | Siskiyou | Del Norte | Lake | Klamath | Jackson | Josephine | Curry
Illinois-Wisconsin
Lake | McHenry | Boone | Winnebago | Stephenson | Jo Daviess | Kenosha | Walworth | Rock | Green | Lafayette | Grant
Connecticut-Rhode Island
Windham | New London | Providence | Kent | Washington
Iowa-Wisconsin
Allamakee | Clayton | Dubuque | Vernon | Crawford | Grant