Diamond Valley Ranch LLC Diamond Valley Ranch LLC 110 7th Street HC 62 Box 62110 Eureka Nevada 89316 (775) 237 - 7200 Contact: D'Mark Mick - Ph 503-699-8800. Email  dmarkmick@usmortgagellc.com lianecalhoon@usmortgagellc.com Diamond Valley Ranch LLC produces premium quality dairy Alfalfa Hay and Timothy Hay for domestic and international markets.