EXHIBIT 4.1d

FOURTH SUPPLEMENTAL INDENTURE

THIS FOURTH SUPPLEMENTAL INDENTURE dated as of
November 17, 2006 among CRC Health Corporation, a Delaware corporation (the Company), the Guarantors, the New Guarantors listed on Schedule A hereto (the New Guarantors) and U.S. Bank National Association,
as trustee (the Trustee).

WHEREAS, the Company and the Guarantors have heretofore executed and
delivered to the Trustee an indenture dated as of February 6, 2006 (the Indenture), providing for the issuance of $200 million aggregate principal amount of the Companys 10.75% Senior Subordinated Notes due 2016 (the
Notes), as supplemented by the First Supplemental Indenture, dated as of July 7, 2006 (the First Supplemental Indenture), the Second Supplemental Indenture, dated as of September 28, 2006 (the
Second Supplemental Indenture) and the Third Supplemental Indenture, dated as of October 24, 2006 (the Third Supplemental Indenture);

WHEREAS, the Company and the Guarantors propose to further amend and supplement the Indenture to join the New Guarantors, each a direct or indirect subsidiary of the Company, as a party to the
Indenture, each as a Guarantor thereunder;

WHEREAS, pursuant to Section 8.01 of the Indenture, the Company and the
Trustee may amend, waive or supplement the Indenture, the Notes or the Guarantees without the consent of any Holders to make any change that would provide additional rights or benefits to the holders of Notes or that does not adversely affect the
legal rights under the Indenture of any such holder;

WHEREAS, the Company, each Guarantor and the New Guarantors have been
authorized by their respective board of directors, managers, members, partners, or general partners, as applicable, to enter into this Fourth Supplemental Indenture;

WHEREAS, all other acts and proceedings required by law, by the Indenture and by the respective certificates of incorporation, certificates of formation, limited liability company agreements,
partnership agreements, limited partnership agreements, by-laws and other organizational documents of the Company, each Guarantor and the New Guarantors to make this Fourth Supplemental Indenture a valid and binding agreement for the purposes
expressed herein, in accordance with its terms, have been duly performed;

WHEREAS, pursuant to Section 8.06 of the
Indenture, the Trustee is authorized to execute and deliver this Fourth Supplemental Indenture;

WHEREAS, the Company
hereby requests that the Trustee execute and deliver this Fourth Supplemental Indenture;

NOW, THEREFORE, for in
consideration of the premises herein contained and in order to effect the proposed amendment to join the New Guarantors to the Indenture pursuant to Section 8.01 of the Indenture, the Company, the New Guarantors and the Guarantors agree with
the Trustee as follows:

ARTICLE I

Amendment of Indenture

1.1. Amendment of Indenture. As of the date hereof,
this Fourth Supplemental Indenture amends the Indenture by joining the New Guarantors as parties to the Indenture, each as a Guarantor thereunder.

1.2. Execution and Delivery of Note Guarantee. Upon the effectiveness of this Fourth Supplemental Indenture, each New Guarantors agrees that a notation of their Guarantee substantially in the form attached as
Exhibit G to the Indenture, will be endorsed by a duly authorized officer of each of the New Guarantors on each Note authenticated and delivered by the Trustee under the Indenture.



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ARTICLE II

Miscellaneous Provisions

2.1. Instruments to be Read Together. This
Fourth Supplemental Indenture is an indenture supplemental to and in implementation of the Indenture, and said Indenture, the First Supplemental Indenture, the Second Supplemental Indenture, the Third Supplemental Indenture and this Fourth
Supplemental Indenture shall henceforth be read together.

2.2. Confirmation. The Indenture as amended and
supplemented by the First Supplemental Indenture, the Second Supplemental Indenture, the Third Supplemental Indenture and further amended and supplemented by this Fourth Supplemental Indenture is in all respects confirmed and preserved.

2.3. Terms Defined. Capitalized terms used herein without definition shall have the meanings assigned to them in the Indenture.

2.4. Counterparts. This Fourth Supplemental Indenture may be signed in any number of counterparts each of which so
executed shall be deemed to be an original, but all such counterparts shall together constitute but one and the same instrument.

2.5. Effect of Headings. The section headings herein are for convenience only and shall not affect the construction hereof.

2.6. Effectiveness. The provisions of this Fourth Supplemental Indenture will take effect immediately upon execution thereof by the parties hereto.

2.7. Trust Indenture Act Controls. If any provision of this Fourth Supplemental Indenture limits, qualifies or conflicts with
another provision that is required by or deemed to be included in this Fourth Supplemental Indenture by the Trust Indenture Act, the required or incorporated provision shall control.

2.8. Governing Law. THIS FOURTH SUPPLEMENTAL INDENTURE SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF
NEW YORK, AS APPLIED TO CONTRACTS MADE AND PERFORMED WITHIN THE STATE OF NEW YORK.

2.9. Trustee. The Trustee
makes no representations as to the validity or sufficiency of this Fourth Supplemental Indenture. The recitals and statements herein are deemed to be those of the Company, the Guarantors and the New Guarantors and not of the Trustee.

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IN WITNESS WHEREOF, the undersigned have executed this Fourth Supplemental Indenture this
17th day of November, 2006.



CRC HEALTH CORPORATIONBy:

/s/    KEVIN
HOGGEName:

Kevin HoggeTitle:

Chief Financial Officer


[Signature Page to Fourth Supplemental Indenture]



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CORPORATE SUBSIDIARIES:4therapy.com NETWORKADVANCED TREATMENT SYSTEMS, INC.ATS OF CECIL COUNTY, INC. ATS OF DELAWARE, INC. ATS OF NORTH CAROLINA, INC.BATON ROUGE TREATMENT CENTER, INC.BECKLEY TREATMENT CENTER, INC.BGI OF BRANDYWINE, INC. BOWLING GREEN INN OF PENSACOLA, INC. BOWLING GREEN INN OF SOUTH DAKOTA, INC.CAPS OF VIRGINIA, INC.CARTERSVILLE CENTER, INC.CHARLESTON TREATMENT CENTER INC. CLARKSBURG TREATMENT CENTER, INC.COMPREHENSIVE ADDICTION PROGRAMS, INC.CORAL HEALTH SERVICES, INC.CRC ED TREATMENT, INC.CRC HEALTH OREGON, INC.CRC HEALTH TENNESSEE, INC.CRC RECOVERY, INC.EAST INDIANA TREATMENT CENTER, INC.EVANSVILLE TREATMENT CENTER INC.GALAX TREATMENT CENTER, INC.GREENBRIER TREATMENT CENTER, INC. HUNTINGTON TREATMENT CENTER, INC. INDIANAPOLIS TREATMENT CENTER, INC.JAYCO ADMINISTRATION, INC. JEFF-GRAND MANAGEMENT CO., INC. KANSAS CITY TREATMENT CENTER, INC.




By:

/s/    KEVIN
HOGGEName:

Kevin HoggeTitle:

Chief Financial Officer


[Signature Page to Fourth Supplemental Indenture]



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CORPORATE SUBSIDIARIES (cont.):MINERAL COUNTY TREATMENT CENTER, INC.MWB ASSOCIATES-MASSACHUSETTS, INC. NATIONAL SPECIALTY CLINICS, INC. NSC ACQUISITION CORP.PARKERSBURG TREATMENT CENTER, INC.RICHMOND TREATMENT CENTER, INC.SAN DIEGO HEALTH ALLIANCESHELTERED LIVING INCORPORATED SIERRA TUCSON
INC.SOBER LIVING BY THE SEA, INC.SOUTHERN INDIANA TREATMENT CENTER INC. SOUTHERN WEST VIRGINIA TREATMENT CENTER, INC. SOUTHWEST ILLINOIS TREATMENT CENTER, INC.STONEHEDGE CONVALESCENT CENTER, INC.TRANSCULTURAL HEALTH DEVELOPMENT, INC.TREATMENT ASSOCIATES, INC.VIRGINIA TREATMENT CENTER, INC.VOLUNTEER TREATMENT CENTER, INC. WCHS OF COLORADO (G), INC. WCHS, INC.WHEELING TREATMENT CENTER, INC. WHITE DEER REALTY, LTD.WHITE DEER RUN, INC.WICHITA TREATMENT CENTER INC.WILLIAMSON TREATMENT CENTER, INC.WILMINGTON TREATMENT CENTER, INC.




By:

/s/    KEVIN
HOGGEName:

Kevin HoggeTitle:

Chief Financial Officer


[Signature Page to Fourth Supplemental Indenture]



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CORPORATE SUBSIDIARIES (cont.):ASPEN EDUCATION GROUP, INC.ASPEN YOUTH, INC.AYS MANAGEMENT, INC.AHS OF IDAHO, INC.LONE STAR EXPEDITIONS, INC.SUWS OF THE CAROLINAS, INC.WILDERNESS THERAPY PROGRAMS, INC.MOUNT BACHELOR EDUCATIONAL CENTER, INC.NEW LEAF ACADEMY, INC.NORTHSTAR CENTER, INC.SUNHAWK ACADEMY OF UTAH, INC.TALISMAN SCHOOL, INC.TEXAS EXCEL ACADEMY, INC.TURN-ABOUT RANCH, INC.YOUTH CARE OF UTAH, INC.




By:

/s/    KEVIN
HOGGEName:

Kevin HoggeTitle:

Chief Financial Officer


[Signature Page to Fourth Supplemental Indenture]



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LIMITED LIABILITY COMPANY SUBSIDIARIES:ACADEMY OF THE SIERRAS, LLCEATING DISORDER VENTURE, LLC ADIRONDACK LEADERSHIP
EXPEDITIONS, LLC ASPEN ACHIEVEMENT ACADEMY, LLCFOUR CIRCLES RECOVERY CENTER, LLC OUTBACK THERAPEUTIC
EXPEDITIONS, LLC PASSAGES TO RECOVERY, LLCTALISMAN SUMMER CAMP, LLC ASPEN RANCH, LLC BROMLEY BROOK SCHOOL, LLCCEDARS ACADEMY, LLC COPPER CANYON ACADEMY,
LLC ISLAND VIEW RESIDENTIAL TREATMENT CENTER, LLCNEW LEAF ACADEMY OF NORTH CAROLINA, LLC ASPEN INSTITUTE
FOR BEHAVIORAL ASSESSMENT, LLC OAKLEY SCHOOL, LLCSWIFT RIVER ACADEMY, L.L.C.




By:

/s/    KEVIN
HOGGEName:

Kevin HoggeTitle:

Chief Financial Officer


[Signature Page to Fourth Supplemental Indenture]



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SAN DIEGO TREATMENT SERVICESBy:

Jayco Administration, Inc.Its:

PartnerBy:

/s/    KEVIN
HOGGEName:

Kevin HoggeTitle:

Chief Financial OfficerBy:

Treatment Associates, Inc.Its:

PartnerBy:

/s/    KEVIN
HOGGEName:

Kevin HoggeTitle:

Chief Financial Officer


[Signature Page to Fourth Supplemental Indenture]



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CALIFORNIA TREATMENT SERVICESBy:

Jayco Administration, Inc.Its:

PartnerBy:

/s/    KEVIN
HOGGEName:

Kevin HoggeTitle:

Chief Financial OfficerBy:

Treatment Associates, Inc.Its:

PartnerBy:

/s/    KEVIN
HOGGEName:

Kevin HoggeTitle:

Chief Financial Officer


[Signature Page to Fourth Supplemental Indenture]



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MILWAUKEE HEALTH SERVICES SYSTEMBy:

WCHS, Inc.Its:

PartnerBy:

/s/    KEVIN
HOGGEName:

Kevin HoggeTitle:

Chief Financial OfficerBy:

Coral Health Services, Inc.Its:

PartnerBy:

/s/    KEVIN
HOGGEName:

Kevin HoggeTitle:

Chief Financial Officer


[Signature Page to Fourth Supplemental Indenture]



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THE CAMP RECOVERY CENTERS, L.P.By:

CRC Recovery, Inc.Its:

General PartnerBy:

/s/    KEVIN
HOGGEName:

Kevin HoggeTitle:

Chief Financial OfficerBy:

CRC Health CorporationIts:

Limited PartnerBy:

/s/    KEVIN
HOGGEName:

Kevin HoggeTitle:

Chief Financial Officer


[Signature Page to Fourth Supplemental Indenture]



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STONEHEDGE CONVALESCENT CENTER LIMITED PARTNERSHIPBy:

Stonehedge Convalescent Center, Inc.Its:

General PartnerBy:

/s/    KEVIN
HOGGEName:

Kevin HoggeTitle:

Chief Financial OfficerBy:

Comprehensive Addiction Programs, Inc.Its:

Limited PartnerBy:

/s/    KEVIN
HOGGEName:

Kevin HoggeTitle:

Chief Financial Officer


[Signature Page to Fourth Supplemental Indenture]



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U.S. BANK NATIONAL ASSOCIATION, as TrusteeBy:

/s/    RICHARD
PROKOSCHName:

Richard ProkoschTitle:

Vice President


[Signature Page to Fourth Supplemental Indenture]



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SCHEDULE A



|                                               |  |                                      
|---------------------------------------------- |  | -------------------------------------
|Name of New Guarantor                          |  | State of Incorporation orOrganization
|Academy of the Sierras, LLC                    |  | Delaware                             
|Adirondack Leadership Expeditions, LLC         |  | Delaware                             
|AHS of Idaho, Inc.                             |  | Idaho                                
|Aspen Achievement Academy, LLC                 |  | Delaware                             
|Aspen Education Group, Inc.                    |  | California                           
|Aspen Institute for Behavioral Assessment, LLC |  | Delaware                             
|Aspen Ranch, LLC                               |  | Delaware                             
|Aspen Youth, Inc.                              |  | California                           
|AYS Management, Inc.                           |  | California                           
|Bromley Brook School, LLC                      |  | Delaware                             
|Cedars Academy, LLC                            |  | Delaware                             
|Copper Canyon Academy, LLC                     |  | Delaware                             
|Eating Disorder Venture, LLC                   |  | Delaware                             
|Four Circles Recovery Center, LLC              |  | Delaware                             
|Island View Residential Treatment Center, LLC  |  | Delaware                             
|Lone Star Expeditions, Inc.                    |  | Delaware                             
|Mount Bachelor Educational Center, Inc.        |  | Oregon                               
|New Leaf Academy of North Carolina, LLC        |  | Delaware                             
|New Leaf Academy, Inc.                         |  | Oregon                               
|NorthStar Center, Inc.                         |  | Delaware                             
|Oakley School, LLC                             |  | Delaware                             
|Outback Therapeutic Expeditions, LLC           |  | Delaware                             
|Passages to Recovery, LLC                      |  | Delaware                             
|SunHawk Academy of Utah, Inc.                  |  | Delaware                             
|SUWS of the Carolinas, Inc.                    |  | Delaware                             
|Swift River Academy, L.L.C.                    |  | Delaware                             
|Talisman School, Inc.                          |  | Delaware                             
|Talisman Summer Camp, LLC                      |  | Delaware                             
|Texas Excel Academy, Inc.                      |  | Delaware                             
|Turn-About Ranch, Inc.                         |  | Delaware                             
|Wilderness Therapy Programs, Inc.              |  | Oregon                               
|Youth Care of Utah, Inc.                       |  | Delaware