Exhibit 23
Consent of Independent Registered Public Accounting Firm
Hecla Mining Company Capital Accumulation Plan
Spokane, Washington
We hereby consent to the incorporation by reference in the Registration Statement on Form
S-8 (No. 333-176364, 333-195019, and 333-209727) of Hecla Mining Company of our report dated June 22, 2016 relating to the financial statements and supplemental schedule of Hecla Mining Company Capital Accumulation Plan which appear in this Form 11-K for the year ended December 31, 2015.
/s/ BDO USA, LLP
Spokane, Washington
June 22, 2016