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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 Sunset
  • Late Fall/Winter months: 10:00am until 5:00pm
  • Sunday Hours:  9:00am until 5:00pm

Events at the Chapel:

  • Holy Hour is held every Sunday at 3:00pm. (approximately 2 hours).
  • Service includes Exposition & Adoration, Divine Chaplet of Mercy, the Rosary and Prayers and Special Cross Blessing.
  • Mass is celebrated on the 1st and 3rd Sunday of the month at 2:00pm.  Changes due occur: Look under Chapel News for mass schedule.
  • 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:  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 -10:00pm
  • Saturday/Sunday:  9:00am - 5:00pm

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.)
  • Business Office: - 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.

Through the years

Click to listen to the audio of the aborted baby. Audio of Aborted Baby

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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