SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549


                                    FORM 8-K

                                 CURRENT REPORT
                     PURSUANT TO SECTION 13 OR 15(D) OF THE
                         SECURITIES EXCHANGE ACT OF 1934

                Date of Report (Date of earliest event reported)
                      October 30, 2000 (October 30, 2000)


                           American Tower Corporation
               (Exact Name of Registrant as Specified in Charter)

      Delaware                        001-14195               65-0723837
(State or Other Jurisdiction        (Commission             (IRS Employer
 of Incorporation)                  File Number)           Identification No.)


         116 Huntington Avenue
         Boston, Massachusetts                                 02116
(Address of Principal Executive Offices)                      (Zip Code)


Registrant's telephone number, including area code: (617) 375-7500

Item 7. Financial Statements, Pro Forma Financial Information and Exhibits (c) Exhibits. Exhibit No. Item 99.1 Summary of contents of presentation materials. Item 9. Regulation FD Disclosure American Tower Corporation (the "Company") is furnishing under Item 9 of this Current Report on Form 8-K the information included as Exhibit 99.1 to this report. Exhibit 99.1 includes information that the Company will include in presentations to current and prospective stockholders and other persons and institutions who may be interested in the Company and its business, finances or securities in various forums, including presentations at industry conferences and one-on-one or group meetings with investors or other interested parties. Exhibit 99.1 contains "forward-looking statements" that involve a number of risks and uncertainties. Forward-looking statements include those regarding the Company's goals, beliefs, strategies, objectives, scenarios, plans or current expectations and matters that are not historical facts. For example, when the Company uses the words believe, expect, estimate, anticipate, could or similar expressions, it is making forward-looking statements. You should be aware that certain factors may affect the Company in the future and could cause actual results to differ materially from those expressed in the Company's forward-looking statements. Among these factors are (i) the Company's substantial capital requirements and leverage, principally as a consequence of its ongoing acquisitions and construction, (ii) the Company's dependence on the following: wireless communications demand, use of satellites for internet data transmission and implementation of digital television, (iii) the success of the Company's tower construction program, (iv) the Company's ability to locate attractive acquisition targets, acquire them on terms it feels are reasonable and to successfully integrate acquisitions and (v) the governmental, expropriation, currency and fund repatriation risks of the Company's growing foreign operations. Additional factors include the risk factors set forth in the prospectus relating to the Company's June 2000 public equity offering. Exhibit 99.1 is dated as of the date hereof and reflects management's views as of those dates. The Company undertakes no obligation to update the information contained in Exhibit 99.1, including forward-looking statements, to reflect subsequently occurring events or circumstances. Note: the information in this report (including Exhibit 99.1 is furnished pursuant to Item 9 and shall not be deemed to be "filed" for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section. This report will not be deemed an admission as to the materiality of any information in the report that is required to be disclosed solely by Regulation FD.

SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. AMERICAN TOWER CORPORATION (Registrant) Date: October 30, 2000 By: /s/ Justin D. Benincasa Name: Justin D. Benincasa Title: Senior Vice President and Corporate Controller


                                                                    Exhibit 99.1

The information contained in this Exhibit 99.1, including excerpts from the 2005
vision  statement  below,  is  information  that the Company plans to share with
interested  parties in various forums,  including  presentations at investor and
industry  conferences  and  one-on-one or group meetings with investors or other
interested parties.

- -    Estimated sites owned,  leased,  or managed as of 12/31/00 is approximately
     11,000.

- -    Estimated new construction for the fourth quarter 2000 is approximately 450
     towers.

- -    Estimated new construction for the year 2001 is approximately 2,000 towers.

The following are excerpts from the Company's vision statement for the year 2005
and other company presentations.  The Company views the information contained in
this vision  statement as long term goals. The Company believes that this vision
represents  a possible  scenario of what it may look like in the year 2005.  The
statements are in the present tense, as if the Company were speaking in the year
2005. There can be no assurances that these goals will be attained.


o    We are the number one owner and operator of wireless  towers and  broadcast
     towers in the contiguous countries of North America with over 25,000 active
     towers or sites.
o    The vast majority of our structures are co-location ready and do not convey
     revenue shares to anybody.
o    Approximately  80% of our sites in the U.S. are located  within the Top 100
     BTAs (Basic Trading Areas) as ranked by population.
o    Over 50% of the land  underneath our towers is owned by us.
o    On average we exceed three broadband equivalent tenants per tower.
o    We have the highest organic growth rate among the top 3 tower companies.
o    Our   teleports   operation,   renamed  as  Verestar,  has  emerged  as  an
     international leader in internet, voice and data communications via space.
o    We have a market capitalization above $25 billion and a public float above
     200 million shares.

The following statements give the assumptions underlying some of the Company's vision 2005 statements. By their nature, the assumptions are estimates and subject to change. If the underlying assumptions change, the goals will also change. There can be no assurances that the assumptions, and the goals based on such assumptions, will materialize. The following is one possible scenario that could lead the Company to meet its goal of owning and operating at least 25,000 sites by 2005: Sites as of 9/30/00 10,000 New Construction 9,000 Acquisitions 6,000 Total 25,000 The Company believes it could achieve a weighted average cost per tower of $250,000 for a 25,000 site portfolio by creating a portfolio of the following components: Sites Average Cost Total Cost New Construction 15,000 $180,000 $2,700,000,000 Carrier Acquisitions 4,000 $280,000 $1,120,000,000 Other Acquisitions 6,000 $400,000 $2,400,000,000 Weighted Average Cost $250,000 Total Investment $6,220,000,000 The Company believes that its Tower Return on Assets (ROA), defined as revenue less operating cost divided by tower cost, for a typical single tower in five years could exceed 20% under the following assumptions: The Company achieves its weighted average cost per tower goal of $250,000. The industry standard assumption for a typical broadband rental revenue rate in the year 2000 is $18,000 per year. Typical rental rates escalate between 3% and 5% per year for the next five years. The Company achieves its average broadband equivalent tenant per tower goal of three. The industry standard assumption for typical site operating costs in the year 2000 is $10,000 per year. Typical operating costs escalate between 5% and 6% per year for the next five years. The Company believes that newly constructed towers built should produce an ROA in excess of 20% based on the following assumptions: The Company constructs towers at a typical construction cost of $180,000 per tower. The industry standard assumption for a typical broadband rental revenue rate in the year 2000 is $18,000 per year. Typical rental rates escalate between 3% and 5% per year for the next five years. The Company achieves its average broadband equivalent tenant per tower goal of three. The industry standard assumption for typical site operating costs in the year 2000 is $10,000 per year. Typical operating costs escalate between 5% and 6% per year for the next five years. Should the Company exceed its average broadband tenant per tower goal and achieve an average of 3.75 broadband tenants per tower, the ROA could exceed 30%.

The Company believes that over time its operating margins for a single tower will improve due to its ability to leverage operating costs and regional costs over a larger revenue base. Under the following assumptions, the Company believes that its operating margin could exceed 65% by year 5: The Company achieves its tower acquisition and construction goals to own, lease, or manage 25,000 sites by 2005. The industry standard assumption for a typical broadband rental revenue rate in the year 2000 is $18,000 per year. Typical rental rates escalate between 3% and 5% per year for the next five years. The Company's tower portfolio has an average of at least 2.5 broadband equivalent tenants per tower. The industry standard assumption for typical site operating costs in the year 2000 is $10,000 per year. Typical operating costs escalate between 5% and 6% per year for the next five years. The Company believes that it could generate operating cash flow (defined as operating revenue less operating expenses, excluding depreciation and amortization and development expenses, and includes interest income, TV Azteca, net) of $1,600,000,000 in the year 2005 under the following assumptions: The Company achieves its tower acquisition and construction goals to own and operate 25,000 sites by 2005. The Company's tower portfolio has an average of at least 2.25 broadband equivalent tenants per tower. The Company's Services group generates at least $160,000,000 in operating cash flow. The Company's Internet, voice, data and video transmission group generates at least $160,000,000 in operating cash flow. The Company achieves its goal of owning and operating towers in selected foreign countries and these operations generate at least $80,000,000 in operating cash flow.