KRR Mastiffs

KRR Mastiffs, mastiffs, El Sobrante, CA, in Contra Costa County and the San Francisco Bay Area near Oakland. Kelly Cooper is committed to responsible mastiff breeding with health screening that follows breed club recommendations for hips, elbows and cardiac function. Puppies are raised in a home environment with early socialization, daily interaction and supervised time in a fenced yard. Each litter reflects Kelly’s focus on stable temperament and structural soundness, supported by regular veterinary care and clear health records.

The family-run setting on a semi-rural property ensures a calm atmosphere where youngsters grow alongside adults. Many recipients note the steady nature and friendly approach of KRR mastiffs, reflecting Kelly Cooper’s dedication to long-term well-being. Prospective owners receive thorough guidance on nutrition, training and exercise needs to promote healthy growth. Regular updates and photos help families follow development milestones from neonatal care to gentle play.