On December 4, 2008, Deck Slone, Vice President - Government, Investor & Public Affairs of Arch Coal, Inc., will deliver a presentation at the Raymond James 1st Annual Coal Investors Conference that will include written communication comprised of slides. The slides from the presentation are attached hereto as Exhibit 99.1 and are hereby incorporated by reference.
A copy of the slides will be available at http://investor.archcoal.com/events.cfm for 30 days. Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

The following exhibit is attached hereto and furnished herewith.

Exhibit
  No.                                    Description

99.1      Slides from the December 4, 2008 presentation at the Raymond James 1st
          Annual Coal Investors Conference.

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.

Dated: December 4, 2008 Arch Coal, Inc.

By: /s/ Robert G. Jones Robert G. Jones Senior Vice President - Law, General Counsel and Secretary

                                 Exhibit Index

Exhibit
  No.                                    Description

99.1      Slides from the December 4, 2008 presentation at the Raymond James 1st
          Annual Coal Investors Conference.