June 13 (Reuters) - Millrock Resources Inc MRO.V
* Millrock acquires option on La Navidad gold project and makes joint venture agreement with Centerra Gold, Sonora State, Mexico
* Simultaneously with purchase agreement, Millrock has entered an option to joint venture agreement with Centerra Gold Inc
* Centerra will fund initial exploration on project
* Has entered an option agreement to purchase La Navidad Gold Project from a private mexico firm, Western Mining S.A. De C.V
* A final option payment of US$2 million could be made to complete purchase of mineral rights
* To complete purchase of 100% interest in La Navidad, $2.5 million in option payments to Western Mining S.A. De C.V to be made over 4-year period Source text for Eikon: ID:nCCN0xptja Further company coverage: MRO.V