Exhibit 23
Consent of Independent Registered Public Accounting Firm
Hecla Mining Company Capital Accumulation Plan
Coeur d’Alene, Idaho
We hereby consent to the incorporation by reference in the Registration Statement on Form S-8 (Nos. 333-176364, 333-195019, 333-209727) of Hecla Mining Company of our report dated June 29, 2018, relating to the financial statements and supplemental schedules of Hecla Mining Company Capital Accumulation Plan which appear in this Form 11-K for the year ended December 31, 2017.
/s/ BDO USA, LLP
Spokane, WA
June 29, 2018