The Gregarious Railfan
Appendices
Denver Todd is The Gregarious Railfan
Todd Sestero is the publisher of RAILFAN GUIDES of the U.S.      
State/Possession          Abbreviation
Alabama                        AL
Alaska                          AK
Arizona                         AZ
Arkansas                        AR
California                        CA
Colorado                        CO
Connecticut                     CT
Delaware                        DE
District of Columbia             DC
Florida                          FL
Georgia                         GA
Hawaii                          HI
Idaho                           ID
Illinois                       
    IL
Indiana                      
     IN
Iowa                         
    IA
Kansas                          KS
Kentucky                     
   KY
Louisiana                        LA
Maine                          
 ME
Maryland                       MD
Massachusetts                  MA
Michigan                       
 MI
Minnesota                      MN
Mississippi                      MS
Missouri                        MO
Montana                       MT
Appendix  A  State Abbreviations  
Appendix  B  Regions of the U.S.  different maps need different divisions to accomodate data
State/Possession          Abbreviation
Nebraska                       NE
Nevada                         NV
New Hampshire                 NH
New Jersey                    NJ
New Mexico                    NM
New York                      NY
North Carolina                 NC
North Dakota                  ND
Ohio                           OH
Oklahoma                       OK
Oregon                         OR
Pennsylvania                    PA
Rhode Island                    RI
South Carolina              
         SC
South Dakota                  SD
Tennessee                      TN
Texas                          TX
Utah                           UT
Vermont                       VT
Virginia                         VA
Washington                     WA
West Virginia                   WV
Wisconsin                       WI
Wyoming                       WY
Appendix  C  AAR Frequencies & Channels
.                               4 REGION

Region 1: Northeast
Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont, New Jersey, New York, and Pennsylvania

Region 2: Midwest
Illinois, Indiana, Michigan, Ohio, Wisconsin, Iowa, Kansas, Minnesota, Missouri,
Nebraska, North Dakota, and South Dakota

Region 3: South
Delaware, Florida, Georgia, Maryland, North Carolina, South Carolina, Virginia, District of Columbia, and West Virginia,
Alabama, Kentucky, Mississippi, Tennessee,  Arkansas, Louisiana, Oklahoma, and Texas

Region 4: West
Arizona, Colorado, Idaho, Montana, Nevada, New Mexico, Utah, and Wyoming, Alaska,
California, Hawaii, Oregon, and Washington
  


.                               7 REGION

Region 1: Northeast
Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont, New York, and Pennsylvania

Region 2: Atlantic
Delaware, New Jersey, Maryland, North Carolina, South Carolina, Virginia, West Virginia, and District of Columbia,

Region 3: Southeast
Florida, Georgia, Alabama, Kentucky, and Tennessee

Region 4: Midwest
Illinois, Indiana, Michigan, Ohio, Wisconsin, Iowa, Kansas, Minnesota, Missouri,
Nebraska,

Region 5: South
Arkansas, , Louisiana, Mississippi, Oklahoma, and Texas

Region 6: Northwest
Alaska, Idaho, Montana, North Dakota, South Dakota, Oregon, Washington, and Wyoming,

Region 7: Southwest
Arizona, Colorado, California, Hawaii, Nevada, New Mexico and Utah