X0407 4 2023-06-21 0000783324 VISTA GOLD CORP VGZ 0001772794 Solly Pamela A. C/O VISTA GOLD CORP. 7961 SHAFFER PARKWAY, SUITE 5 LITTLETON CO 80127 true VP, Investor Relations false Common Shares 2023-06-21 4 P 0 1000 0.5229 A 191830 D Exhibit 24.2 Power of Attorney /s/ Glenn Cowan as attorney-in-fact for Pamela A. Solly 2023-06-22