EXHIBIT 11.1

                       CROWN CASTLE INTERNATIONAL CORP.

                   COMPUTATION OF NET LOSS PER COMMON SHARE
              (In thousands of dollars, except per share amounts)




                                                               Three Months Ended       Nine Months Ended
                                                                 September 30,            September 30,
                                                             ---------------------     ------------------- 
                                                              1997           1998       1997         1998
                                                              ----           ----       ----         ----
                                                          (In thousands of dollars, except per share amounts)
                                                                                       
Net loss                                                     $(4,001)    $(17,444)    $(6,150)    $(30,476)
Dividends on Senior Convertible  Preferred Stock                (461)        (216)       (461)      (4,348)              
                                                             -------     --------     -------     -------- 
Net loss applicable to common stock for basic and                                                
  diluted computations                                       $(4,462)    $(17,660)    $(6,611)    $(34,824)
                                                             =======     ========     =======     ========  
Weighted-average number of common  shares                                                         
 outstanding during the period  for basic and                                                     
 diluted computations (in thousands)                           7,254       53,879       4,672       25,262
                                                             =======     ========     =======     ========  
Loss per common share - basic and diluted                    $ (0.62)    $  (0.33)    $ (1.42)    $  (1.38)
                                                             =======     ========     =======     ========