"John Clear" wrote in message
...

Towers can be very hard to spot in the haze. There is a 1500ft
tower on the top of a 2500ft ridge between Watsonville (WVI) and
South County (E16 (formerly Q99)). On a clear day, it isn't easy
to see. With fog/haze, it becomes invisible.

I took these shots on a somewhat hazy day:

http://www.panix.com/~jac/spot-the-tower/

There are strobes on it, but the tower itself is a flat grey, which
is very good at blending into the haze/fog.

I have seen that tower a few times. It is one of the scariest towers in the
country.