Landmark information
- Location: 
In front of recreation center on Elk St, Glen Canyon Park, San Francisco - Plaque: 
Official State Plaque - Site: 
Nothing Remains - Date First Visited: 
3/2/1997 - Date Most Recently Visited: 
7/22/2019 - GPS Coordinates: 
N 37 44.170, W 122 26.393 
About this landmark
                Plaque text: 
				
				The first dynamite factory in America
				
				Giant Powder Company, under personal license of inventor Alfred Nobel, began producing dynamite here on March 19, 1868. On November 26, 1869, a massive explosion leveled the complex's buildings and fences. Giant Powder soon resumed operations in west San Francisco, and moved to its final site at Pt. Pinole in 1892. As a pioneer company, Giant Powder was so influential that "Giant" became synonymous with "dynamite," a vital ingredient for California's early development.