**Exhibit 4.1f**

**SIXTH SUPPLEMENTAL INDENTURE**

THIS SIXTH SUPPLEMENTAL INDENTURE dated as of July 26, 2007 among CRCHealth Corporation, a Delaware corporation (the “Company”), the Guarantors, (i) CRC Health Management, Inc., a Delaware corporation, (ii) CRC Weight Management, Inc., a Delaware corporation, (iii) Bayside Marin, LLC,a Delaware limited liability company, (iv) Phoenix Outdoor, LLC, a Delaware limited liability company, and (v) Structure House Acquisition, LLC, a Delaware limited liability company (each of (i)-(v) aforesaid, a “NewGuarantor”) and U.S. Bank National Association, as trustee (the “Trustee”). 

WHEREAS, the Company and theGuarantors 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 asof September 28, 2006 (the “Second Supplemental Indenture”), the Third Supplemental Indenture, dated as of October 24, 2006 (the “Third Supplemental Indenture”), the Fourth Supplemental Indenture, dated asof November 17, 2006 (the “Fourth Supplemental Indenture”) and the Fifth Supplemental Indenture, dated as of April 27, 2007 (the “Fifth Supplemental Indenture”); 

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

WHEREAS, pursuant to Section 8.01 of the Indenture, the Company andthe 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 affectthe legal rights under the Indenture of any such holder; 

WHEREAS, the Company, each Guarantor and each New Guarantor have been authorizedby their respective board of directors, managers, members, partners, or general partners, as applicable, to enter into this Sixth 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 each New Guarantor to make this Sixth Supplemental Indenture a valid and binding agreement for the purposes expressed herein, in accordancewith its terms, have been duly performed; 

WHEREAS, pursuant to Section 8.06 of the Indenture, the Trustee is authorized to executeand deliver this Sixth Supplemental Indenture; 

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

NOW, THEREFORE, for in consideration of the premises herein contained and in order to effect the proposedamendment to join each New Guarantor to the Indenture pursuant to Section 8.01 of the Indenture, the Company, each New Guarantor 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 Sixth Supplemental Indenture amends the Indenture by joining each New Guarantor as aparty to the Indenture, as a Guarantor thereunder. 

1.2. Execution and Delivery of Note Guarantee. Upon the effectiveness of thisSixth Supplemental Indenture, each New Guarantor agrees that a notation of its Guarantee substantially in the form attached as Exhibit G to the Indenture, will be endorsed by a duly authorized officer of such New Guarantor on each Note authenticatedand delivered by the Trustee under the Indenture. 

ARTICLE II 

Miscellaneous Provisions 

2.1. Instruments to be Read Together. This Sixth SupplementalIndenture 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 the Fourth Supplemental Indenture, the FifthSupplemental Indenture and this Sixth Supplemental Indenture shall henceforth be read together. 

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

2.3. Terms Defined. Capitalized terms used herein withoutdefinition shall have the meanings assigned to them in the Indenture. 

2.4. Counterparts. This Sixth Supplemental Indenture may besigned 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 Sixth Supplemental Indenture will take effect immediately upon execution thereof by the parties hereto.

 

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

2.8. Governing Law. **THIS SIXTH 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 asto the validity or sufficiency of this Sixth Supplemental Indenture. The recitals and statements herein are deemed to be those of the Company, the Guarantors and each New Guarantor and not of the Trustee. 

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IN WITNESS WHEREOF, the undersigned have executed this Sixth Supplemental Indenture this 26th day ofJuly, 2007. 

 
CRC HEALTH CORPORATIONBy: Name: Kevin HoggeTitle: Chief Financial Officer
[Signature Page to Sixth Supplemental Indenture] 

**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 MANAGEMENT, INC.CRC HEALTH OREGON, INC.CRC HEALTH TENNESSEE, INC.CRC WEIGHT MANAGEMENT, 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: Name: Kevin HoggeTitle: Chief Financial Officer
[Signature Page to Sixth Supplemental Indenture] 

**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 INCORPORATEDSIERRA 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: Name: Kevin HoggeTitle: Chief Financial Officer
**CORPORATE SUBSIDIARIES (cont.):**ASPEN EDUCATION GROUP, INC.ASPEN YOUTH, INC.AYS MANAGEMENT, INC.AHS OF IDAHO, INC.CAMP HUNTINGTON, 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: Name: Kevin HoggeTitle: Chief Financial Officer
[Signature Page to Sixth Supplemental Indenture] 

**LIMITED LIABILITY COMPANY SUBSIDIARIES:**ACADEMY OF THE SIERRAS, LLCEATING DISORDER VENTURE, LLCADIRONDACK LEADERSHIP EXPEDITIONS, LLCASPEN ACHIEVEMENT ACADEMY, LLCFOUR CIRCLES RECOVERY CENTER, LLCOUTBACK THERAPEUTIC EXPEDITIONS, LLCPASSAGES TO RECOVERY, LLCTALISMAN SUMMER CAMP, LLCASPEN RANCH, LLCBROMLEY BROOK SCHOOL, LLCCEDARS ACADEMY, LLCCOPPER CANYON ACADEMY, LLCISLAND VIEW RESIDENTIAL TREATMENT CENTER, LLCNEW LEAF ACADEMY OF NORTH CAROLINA, LLCASPEN INSTITUTE FOR BEHAVIORAL ASSESSMENT, LLCOAKLEY SCHOOL, LLCSWIFT RIVER ACADEMY, L.L.C.PHOENIX OUTDOOR, LLCBAYSIDE MARIN, LLCSTRUCTURE HOUSE ACQUISITION, LLCBy: Name: Kevin HoggeTitle: Chief Financial Officer
[Signature Page to Sixth Supplemental Indenture] 

SAN DIEGO TREATMENT SERVICESBy: Jayco Administration, Inc.Its: PartnerBy: Name: Kevin HoggeTitle: Chief Financial OfficerBy: Treatment Associates, Inc.Its: PartnerBy: Name: Kevin HoggeTitle: Chief Financial Officer
[Signature Page to Sixth Supplemental Indenture] 

CALIFORNIA TREATMENT SERVICESBy: Jayco Administration, Inc.Its: PartnerBy: Name: Kevin HoggeTitle: Chief Financial OfficerBy: Treatment Associates, Inc.Its: PartnerBy: 
 
Name: Kevin HoggeTitle: Chief Financial Officer
[Signature Page to Sixth Supplemental Indenture] 

MILWAUKEE HEALTH SERVICES SYSTEMBy: WCHS, Inc.Its: PartnerBy: 
 
Name: Kevin HoggeTitle: Chief Financial OfficerBy: Coral Health Services, Inc.Its: PartnerBy: 
 
Name: Kevin HoggeTitle: Chief Financial Officer
[Signature Page to Sixth Supplemental Indenture] 

THE CAMP RECOVERY CENTERS, L.P.By: CRC Recovery, Inc.Its: General PartnerBy: 
 
Name: Kevin HoggeTitle: Chief Financial OfficerBy: CRC Health CorporationIts: Limited PartnerBy: 
 
Name: Kevin HoggeTitle: Chief Financial Officer
[Signature Page to Sixth Supplemental Indenture] 

STONEHEDGE CONVALESCENT CENTER LIMITED PARTNERSHIPBy: Stonehedge Convalescent Center, Inc.Its: General PartnerBy: 
 
Name: Kevin HoggeTitle: Chief Financial OfficerBy: Comprehensive Addiction Programs, Inc.Its: Limited PartnerBy: 
 
Name: Kevin HoggeTitle: Chief Financial Officer
[Signature Page to Sixth Supplemental Indenture] 

U.S. BANK NATIONAL ASSOCIATION,as Trustee
By:
 
 

Name:
 
Title:
 
[Signature Page to Sixth Supplemental Indenture]