Title | Date | Type | ||
---|---|---|---|---|
1 | Little Bonanza Gilsonite Mines Layout Plat - Ziegler Chemical & Mineral Corp | 1987; 1995; 1996 | Image/StillImage | |
2 | Rainbow Area Topographic Map Showing Gilsonite Veins, Leases & Claims - Ziegler Chemical & Mineral Corp | 1979; 1996 | Image/StillImage |