• Our Lady of the Sierras

    A Marian Shrine
  • Experience!

    The Glory
  • Powerful!

    It will change your life!
  • Rejoice!

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La Purisima Retreat Center

For Accommodation and Reservations Read More

Shrines Specification

This small private shrine, open to the public, is located on a mountain side in Southeast Arizona, part of the Read More

A Word from our Visionary

Praise the Lord! Nothing stays the same once they truly commit ourselves to the Will of the Father. We slowly Read More

Insight and Reflection

During these particularly difficult times in our lives, it is felt that our Lord desires to offer words of encouragement Read More

History of the Shrine

The seeds of the building of the Shrine of Our Lady of the Sierras Read More
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We welcome all visitors to enjoy the serenity of Our Lady of the Sierras Shrine. We are opened to the public daily, weather permitting.


Build it - They will come (message June 1, 1997)  


As with any of our Events please check the calendar for changes to the schedule. Thank you!

Divine Mercy Chaplet & Mass Sundays: 

3pm @ the Chapel 


Weekday Masses with Fr Jude Dioka:

Tuesday & Thursday, 12 noon @ the Chapel
 Confessions available immediately after mass or by appointment


1 Hour Adoration, Exposition of the Blessed Sacrament & Divine Mercy Rosary:

1st Saturday of every month - 3pm @ the Chapel


Friday Night Rosary:

Every Friday @ 7:30pm @ Mary's Knoll


Mass is lived streamed to our Facebook page. 

 Click Facebook live stream to view Our Lady of the Sierras Mass and Rosary live streams. 


La Purisima Pilgrimage & Retreat Center

To schedule a Retreat, please call (602) 726-3615





10310 S. Twin Oaks Road, Hereford, AZ 85615 

Hours of Operation:

  • March through September:  9:00am until Sunset
  • October through February: 9:00am until 5:00/6:00pm   These hours may change without notice if snow or ice are present or at the discretion of Management.
  • Sunday Hours: 9:00am until 5:00pm

Events at the Chapel:  (check calendar for dates & times)

  • 3:00pm Sunday Mass schedule:
    • 1st & 3rd Sunday celebrated with Fr. Amal  (English) 
    • 2nd, 4th & 5th Sunday celebrated with Fr. Marco (Spanish)
  • Weekday Mass Tuesdays and Thursdays 12noon with Fr Jude Dioka
  • 1st Saturday of every month @ 3pm: Dcn Tim Krieski - 1 hour of Adoration, Exposition of the Blessed Sacrament and Divine Mercy Rosary. 

Stations of the Cross:

  • Open daily from 9:00am until Sunset and can be accessed from the lower parking lot.

Mary's Knoll: Visitor Center & Prayer House -

10235 S Twin Oaks Road, Hereford, AZ 85615 - Phone: (520) 378-2950

Hours of Operation: 

  • Monday: 1:00pm - 5:00pm
  • Tuesday thru Thursday: 9:00am - 5:00pm
  • Friday: 9:00am -9:00pm
  • Saturday/Sunday: 9:00am - 5:00pm

Events at Mary's Knoll: 

  • Friday Family Night Rosary - 7:30pm
  • Anointing of the Sick on the first (1st) Friday of each month (if a priest is available.)
  • Business Office: - Open during regular Hours of Operation


St Joseph House

St. Joseph house is a beautiful Santa Fe styled home that is located at the entrance to the Shrine. It is available for Priests, Clergy and Members of Religious Orders who would like to enjoy a personal peaceful retreat or sabbatical. For Arrangements call the Business Office (520) 378-2950.


We do not allow the following items on the premises:

  • Any smoking, alcoholic beverages, firearms or loud music
  • Due to fire hazards - we ask that you do not bring or light any candles

 Available Amenities:

  • For Groups of 10 or more - Please contact the Business office with your arrival date/time (520) 378-2950
  • Handicap accessible Facilities 
  • Restroom facilities are available below the Chapel or at Mary's Knoll house

2023 Lenten Retreat

Saturday, April 1st 9am at La Purisima Retreat Center.

For more information please download the flyer.


Bilingual Rosary September 16, 2022 Sorrowful Mysteries

Annual Rosary and Mass December 16, 2022

Listen to the audio of an Aborted Baby Soul


Click on the Image to view a video of Our Lady of the Sierras

Photo Gallery

Chapel from the inside 
Stations of the Cross 
 Mary's Knoll

Rosary & Mass Dates and Times

  • 01 Apr 2023
    Divine Mercy Rosary with Dcn Tim 03:00 PM to 04:00 PM

  • 02 Apr 2023
    English Mass - Celebrant Fr. Amal 03:00 PM to 04:00 PM

  • 01 Apr - 02 Apr
  • 04 Apr - 06 Apr
  • 09 Apr - 09 Apr
St. Joseph House
Inside of Mary's Knoll
Angel of Revelation

Mary's Knoll

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Directions to Our Lady of the Sierras Shrine


Our Lady of the Sierras is located at 10310 S. Twin Oaks Road, Hereford, AZ 85615

La Purisima Retreat Center

La Purisima is named in honor of the Immaculate Conception (in Spanish, La Purisima Concepcion) - was incorporated in the Spring of 2000 to provide a "place apart" in an atmosphere of serenity and peace, where one can experience spiritual renewal and growth in the beautiful high desert of Southeast Arizona.

For the many groups and parishes of the Diocese of Tucson, as well as our other guests, La Purisima Center provides a "desert experience" of prayer and quiet reflection. We are particularly interested in providing retreat facilities for youth groups, but we welcome all groups with special needs.

For more information, please contact the Retreat Coordinator at (520) 240-5658.

Please visit Accommodation and Reservations for more information:


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Our Lady of the Sierras Shrine