• 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: 

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 (602) 726-3615


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. 




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)
  • 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

Annual Christmas Mass, December 17, 2021

Sunday Mass (Spanish) June 26, 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

  • 02 Jul 2022
    Divine Mercy Rosary with Dcn Tim 03:00 PM to 04:00 PM

  • 03 Jul 2022
    English Mass Celebrated with Fr. Amal 03:00 PM to 04:00 PM

  • 02 Jul - 03 Jul
  • 10 Jul - 17 Jul
  • 24 Jul - 24 Jul
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


Insight and Reflection

Dear Brothers and Sisters in Christ,

During these particularly difficult times in our lives, it is felt that our Lord desires to offer words of encouragement to His children. These are not simply words that we read, but special words which will help lessen the severity and anxiety which many people are experiencing during these tumultuous moments in our lives.

Above all, our Lord is calling us to Charity in thought, word and deed. With Charity (Love) we are able to move about this world with a peaceful countenance which reflects the love of Jesus Christ. This does not mean we will not face countless onslaughts of diabolical dishevel in our lives. It means through acts of humility and charity we allow ourselves to be molded into the image that Christ originally intended and through our relinquishing of human will in compliance to the will of Christ we become instruments of Divine Love. Peace through humility changes not only our own personal attitudes, but allows spiritual growth which is nurtured by the indwelling of the Holy Spirit.

Jesus always calls us to spiritual cleansing. We take showers of water to cleanse our bodies; however, Jesus showers us with graces to cleanse our soul. It is sad, to say the least, when the cleansing graces of our Lord slip through our fingers and we find ourselves left spiritually void and empty of the nourishing food for our souls which Our Lord in His mercy pours forth upon us. Oh, how grateful we should be for the Sacraments which our Lord has provided for each and everyone of us so that we may come to “His table” cleansed through reconciliation and partake of the “bread of life”. We are then abundantly filled with new life which invigorates our spirits to proclaim the “Good News” to all those whom we daily encounter.

As parents, how many times have we “encouraged” our children to do something or not to do something for their own well being? If you are like most of us, the times have been too numerous to count. It is our responsibility to assist our children in order to allow them to be able to receive the multitude of graces that God has designated for them. We cannot perform our duties to God, our children, and to one another unless we ourselves are spiritually prepared.

Thus said, let us endeavor to become more in tune with the Word of God (scripture), embrace the Sacraments, and listen with full attention to the promptings of the Holy Spirit!

May God bless each and every one of you……….

A servant of Jesus and Mary

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Our Lady of the Sierras Shrine