• Our Lady of the Sierras

    A Marian Shrine
  • Experience!

    The Glory
  • Powerful!

    It will change your life!
  • Rejoice!

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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

La Purisima Retreat Center

Visit La Purisima Retreat Center 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!

Sunday Mass Schedule:

Every Sunday @ 3pm @ the Chapel 

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

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

Friday Night Rosary with Social Hour:

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

La Purisima Pilgrimage & Retreat Center

To schedule a Retreat, please call (520) 240-5658 


Mass and Rosary are lived streamed to our Facebook page. 

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


Message from Bishop Edward J. Weisenburger:

The CDC has announced that facemasks and social distancing are no longer required at indoor events for those who have been fully vaccinated. This change in protocols will begin on the weekend of Pentecost (May 22/23).



10310 S. Twin Oaks Road, Hereford, AZ 85615 

Hours of Operation:

  • Spring/Summer/early Fall months: 9:00am until Sunset
  • Late Fall/Winter months: 9:30am until 5:00pm (Winter Hours are from Dec 1 thru Feb 28) Chapel may be closed on any given day if snow or ice are present. Gate will be closed at the bottom of the hill.
  • 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)
  • 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: Closed
  • 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, fire arms or loud music
  • Due to fire hazards - we ask that you do not bring or light any candles

 Available Amenities:

  • For Group Outings 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

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

  • 24 Oct 2021
    Spanish Mass Celebrated with Fr. Marco 03:00 PM to 04:00 PM

  • 31 Oct 2021
    Spanish Mass Celebrated with Fr. Marco 03:00 PM to 04:00 PM

  • 24 Oct - 31 Oct
  • 06 Nov - 07 Nov
  • 14 Nov - 14 Nov
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 or LPRetreatcenter@gmail.com or visiting http://www.lpretreat.org


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Our Lady of the Sierras Shrine