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Our Lady of the Sierras - A Marian Shrine

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


10310 S. Twin Oaks Road, Hereford, AZ 85615

Hours of Operation:

  • Spring/Summer months: 9:00am until 5:00pm
  • Late Fall/Winter months: 10:00am until 4:00pm

Events at the Chapel:

  • Holy Hour is held every Sunday at 3:00pm. (approximately 2 hours)
  • Service includes Divine Chaplet of Mercy, the Rosary and Prayers and Special Cross Blessing
  • Bi-lingual Mass will be celebrated on the first Sunday of the month in the Chapel at 2:00pm
  • For special EVENTS at the chapel - Look under the tab "Chapel News".

Stations of the Cross:

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

 Mary's Knoll-Prayer House/Business Office:   

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

Hours of Operation:

  • Tuesday thru Thursday - Open Daily from 10:00am - 5:00pm
  • Friday - 10:00am until Dark
  • Saturday/Sunday - Tentative - Limited Hours (call for appt.)
  • Monday - Closed

Events at Mary's Knoll:

  • Friday Night Rosary at 7:30pm.
  • Anointing of the Sick on the first (1st) Friday of each month after the Rosary. (if a priest is available.)
  • Prayer Room - Open during regular Hours of Operations.


  • We do not allow the following items on the premises.
  • Any smoking, alcoholic beverages or loud music.
  • Due to fire hazards - we ask that you do not bring or light any candles. 
  • For group outings, we ask that you contact our office before your arrival with date/time.
  • Facilities for handicap are available.
  • Restroom facilities are available below the Chapel.

Christmas Message of December 20th, 2013 from Our Lady of the Sierras.

Our Lady of the Sierras

On Friday evening our supporting parish priests, seven deacons and a group of 400 pilgrims gathered for a special rosary and Mass on the anticipation that Our Blessed Mother would again honor us with her on site presence. The event was again held in the large hall at the La Purisima retreat center just below the shrine of Our Lady of the Sierras. As the bi-lingual rosary was concluding, with our two parish priests in witness, the visionary went into the spirit and verbally spoke the following recorded multi part messages.             (Visionary): “My Mother……”

Christmas Message of December 20, 2013

El viernes por la noche se reunieron 400 peregrinos, 7 diáconos y los sacerdotes que apoyan al santuario para asistir a un rosario y misa especial con la esperanza que Nuestra Madre Santísima nos honrara de nuevo con su presencia. El evento se llevó a cabo en el salón principal del Centro de Retiros La Purísima que se encuentra en la parte baja del santuario.  Casi al terminar el rosario bilingüe, la vidente, con dos sacerdotes parroquiales presentes, cayó en el Espíritu y verbalmente dijo estos mensajes que fueron dados en etapas.         (Vidente): "Mi Madre ... ... ..."

Mensaje de Navidad, 20 de diciembre 2013

Through the years

Chapel Restoration Pictures

Past Christmas Messages

  • December 17, 2010 +

    Our Blessed Mother’s evening Message of December 17th, 2010As in previous years our Lady visited us on the hill at Read More
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