EXHIBIT 23.1
 
                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS
 
    As  independent  public accountants,  we hereby  consent to  the use  of our
reports and to all  references to our Firm  included in or made  a part of  this
Registration Statement File No. 333-3980.
 
                                          /s/ ARTHUR ANDERSEN LLP
 
Denver, Colorado,
   
June 27, 1996.