The Company has changed its name to reflect its more recent focus on Canadian p olymetallic mineral deposits.

NEWS RELEASE

July 13, 2016 Symbol:-TSX-V:NAA

CHANGE OF NAME TO CRYSTAL LAKE MINING CORPORATION (CLM)

Vancouver, BC – SIERRA IRON ORE CORPORATION (the “Company”) is pleased to announce that it will change its name to “Crystal Lake Mining Corporation” effective at the opening of the market on July 14, 2016. The new symbol will be ‘CLM’. There is no capital alteration.

The Company has changed its name to reflect its more recent focus on Canadian polymetallic mineral deposits.

The Company is analyzing the results of a recent initial drilling program in Ontario and announcements in this regard will be forthcoming.

About the Company

Sierra is a mineral exploration company focused on creating value through the exploration and analysis of a Stage 1 drilling program in and around Emo, Ontario.

development of its British Columbia and Ontario mineral properties. Sierra is presently completing the

On behalf of The Board of Directors of Sierra Iron Ore Corporation.

Wally Boguski,

President & CEO

This news release contains certain forward looking statements which involve known and unknown risks, delays, and uncertainties not under the control of Sierra Iron Ore Corporation which may cause actual results, performance or achievements of Sierra Iron Ore Corporation to be materially different from the results, performance or expectation implied by these forward looking statements.

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this press release, which has been prepared by management.

CANADA USA 13236 Cliffstone Court #1021 – 100 Easy Street Lake Country BC V4V 2R1 Carefree, AZ 85377 Tel: 250-766-1517 Tel: 480-575-1220 Fax: 250-766-1839 Fax: 480-488-3492 www.sierrairon.com [email protected]