Bill Graham helicopter crash in 1991

https://en.wikipedia.org/wiki/Bill_Graham_helicopter_crash 10-25

38° 9′ 11″ N, 122° 24′ 45″ W
https://tools.wmflabs.org/geohack/geohack.php?pagename=Bill_Graham_helicopter_crash&params=38_09_11_N_122_24_45_W_type:event

"Flying at a low altitude, in weather reported as low overcast, rain and gusty winds, the aircraft flew directly into a 223-foot high-voltage transmission tower along State Highway 37, which runs between Vallejo and Marin County, and just 20 miles from the concert site, at 9:56 PM, killing all three aboard."
http://www.check-six.com/Crash_Sites/Graham-N3456M.htm  223 & 322