[6][7] Mount Saint Helena has had an explosive history of pyroclastic flows that resulted in California's Petrified Forest.

They left a copper plate on the summit inscribed with the date of their visit and the name of Princess Helena de Gagarin, wife of Alexander G. Rotchev, the commanding officer of Fort Ross.

[8][9] The peak is accessible by hiking trails leading from Robert Louis Stevenson State Park.

Scottish writer Robert Louis Stevenson and his wife Fanny Vandegrift Osbourne spent the summer of 1880 honeymooning in an abandoned mining camp on Mount Saint Helena.

Ursula K. Le Guin's novel Always Coming Home is about a post-apocalyptic society that considers Mount Saint Helena sacred.