EXHIBIT 23.4

                       CONSENT OF INDEPENDENT ACCOUNTANTS

The Board of Directors
ICG Satellite Services, Inc.

     We consent to the incorporation by reference in the registration  statement
on Form S-8 for the 1997 Stock Option Plan of American Tower  Corporation of our
report dated February 28, 2000, with respect to the  consolidated  balance sheet
of ICG Satellite Services,  Inc. and subsidiary as of November 30, 1999, and the
related  consolidated  statements of operations and accumulated deficit and cash
flows for the eleven-month  period ended November 30, 1999, which report appears
in the Form 8-K of American Tower Corporation dated March 30, 2000.

                                                 /s/ KPMG LLP
Denver, Colorado
July 10, 2000