The final underground drill results from its 2017 season have, once again, impressed, with metallurgical, infill and exploration holes adding further definition to the 141, Marc, Marc Footwall, Marc Tail, AV, JW and SF zones at Red Mountain.
The highlight of the latest 20 assays was a 25m hit grading 13.7g/t Au and 30.91g/t Ag from 83m. This was an infill intercept from the AV Zone.
IDM also drilled an encouraging 85.5m at 1.24g/t Au from 216m. This was a down-dip step out along the northern limits of the JW Zone.
Rob McLeod, CEO of IDM, said the 2017 drill programme at Red Mountain was "successful in expanding the known extents of all mineralised zones up and down-dip from current reserves".
He also said the company was currently working through the 180-day application review phase of BC's environmental assessment process, while its engineering and mining teams continued to progress the pre-development design required for Mines Act permitting.
All of this is geared towards making a construction decision at Red Mountain next year.
A recently released feasibility study on Red Mountain envisaged a mine able to produce 78,000 ounces of gold at an all-in sustaining cash cost of US$611 per ounce.