Members of the Tsilhqot'in First Nation are expected to rally in Vancouver Monday morning as Taseko Mines heads to federal court hoping to bring back to life the New Prosperity copper-and-gold mine west of Williams Lake.

A mining company that has filed two Federal Court applications against the federal government over the rejection of a $1.5-billion mine in B.C. now wants a full trial.

The company proposing a $1.5-billion mine in British Columbia's Interior says a mistake in the environmental assessment by two federal agencies is so outrageous it's nearly unfathomable.