EXHIBIT 23.3 CONSENT OF MARSHALL MILLER & ASSOCIATES, INC. The Board of Directors International Coal Group, Inc.: Marshall Miller & Associates, Inc. hereby consents to the references to our firm in the form and context in which they appear in the Form S-1 Registration Statement (File No. 333-124393) (the "Form S-1") and the Form S-4 Registration Statement (File No. 333-126156) (the "Form S-4"). We hereby further consent to the use of information contained in our report, dated as of April 22, 2005, setting forth the estimates of the Company's coal reserves in the Form S-1 and Form S-4. Marshall Miller & Associates, Inc. By: /s/ K. Scott Keim ---------------------------- Name: K. Scott Keim ---------------------------- Title: President - Energy & Mineral Resources ---------------------------- October 24, 2005 CONSENT OF MARSHALL MILLER & ASSOCIATES, INC. The Board of Directors Anker Coal Group, Inc.: Marshall Miller & Associates, Inc. hereby consents to the references to our firm in the form and context in which they appear in the International Coal Group, Inc. Form S-1 Registration Statement (File No. 333-124393) (the "Form S-1") and the Form S-4 Registration Statement (File No. 333-126156) (the "Form S-4"). We hereby further consent to the use of information contained in our report, dated as of April 22, 2005, setting forth the estimates of the Company's coal reserves in the Form S-1 and Form S-4. Marshall Miller & Associates, Inc. By: /s/ K. Scott Keim ---------------------------- Name: K. Scott Keim ---------------------------- Title: President - Energy & Mineral Resources ---------------------------- October 24, 2005 CONSENT OF MARSHALL MILLER & ASSOCIATES, INC. The Board of Directors CoalQuest Development LLC: Marshall Miller & Associates, Inc. hereby consents to the references to our firm in the form and context in which they appear in the International Coal Group, Inc. Form S-1 Registration Statement (File No. 333-124353) (the "Form S-1") and the Form S-4 Registration Statement (File No. 333-126156) (the "Form S-4"). We hereby further consent to the use of information contained in our report, dated as of April 22, 2005, setting forth the estimates of the Company's coal reserves in the Form S-1 and Form S-4. Marshall Miller & Associates, Inc. By: /s/ K. Scott Keim ---------------------------- Name: K. Scott Keim ---------------------------- Title: President - Energy & Mineral Resources ---------------------------- October 24, 2005