Route information for R 8121

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Dec     ¦    ¦    ¦    ¦xx  ¦ xxx¦ 
Jan   xxx  xxxxx  xxxxx¦ xx xx  xxx
Feb xx  xxxxx¦ xxxxx  xxxxx ¦xxxx¦ 
Mar x  xxxxx ¦xxxxx  xxxxx  xxxxx¦ 
Apr xxxxx  xxxxx  xxxxx¦ xxxxx  xx 
May  x  ¦ xxxx  xxxxx  xxxxx¦ xxxxx
Jun   xxxxx  xxxxx¦ xxxxx   xxxx ¦ 
Jul xxxxx  xxxxx  xxxxx¦ xxxxx  xxx
Aug xx  xxxxx¦ xxx¦x  xxxxx ¦xxxxx 
Sep  xxxxx  xxxxx ¦xxxxx  xxxxx  x 
Oct xxxx¦ xxxxx  xxxxx ¦xxxxx  xxxx
Nov x  xxxxx ¦xxxxx  xxxxx  xxxxx¦ 
Dec  xxxxx  xxxxx ¦    ¦    ¦    ¦