If the |A| is what make you think it's not Ronda, depending on the age of the sample, it could well be a non digitised alternate glyph.

Edit: confirmed here: http://fontsinuse.com/uses/8676/official-california-visitor-map
It looks that, like many 1970s' typefaces, there were plenty of variations that never made it to digital: http://fontsinuse.com/typefaces/10234/itc-ronda

Confirming Ronda too. Mike Yenaga's "Bauhaus-Style" Font Identification Guide showcases this top rounded alternate /A on 'Ronda Light'.

The Ronda Light with Rounded Alternate doesn’t exist in digital version? No?
(Sorry for my bad english)

Don't know any official version of Ronda ITC that comes with this alternate /A, not even the Pro version. If you need to reproduce it exactly, I guess the only option you have is to recreate it (and from /U, should be quite easy).

I Will,
thanks