Blue River Resources Ltd. is a mineral exploration and development company focused on copper exploration in British Columbia.

The company's Castle Copper Project is located 12 km north of the town of Princeton BC and 25 km north of Copper Mountain Mining Corp.'s Copper Mountain Mine. The Copper Mountain Mine is an open pit mine that recently commenced production at a rate of 100 million pounds of copper per year.

The Castle Copper Project totals approximately 20,000 acres and the exploration target is a potential porphyry copper deposit. A large copper-mineralized zone exists on surface, measuring 500 meters by 150 meters. Recent drilling on the property intersected  120 feet of copper mineralization grading 0.16% copper.