My geographic ignorance

I pride myself on my unequalled geographic knowledge, but that pride is a false pride. There are a lot of places in the Inland Empire that I could not find on a map.

Recently I met someone who was from Wildomar. I thought that meant that she lived up in the mountains. It turns out that I was getting Wildomar confused with Idyllwild, which is in the mountains. Wildomar is between Lake Elsinore and Temecula.

But Wildomar shouldn't feel so bad. Sedco Hills is in the same area, and I've never even heard of Sedco Hills before.

I'll grant that since I live in Ontario, and since I rarely head toward Temecula (I think I've been through the Temecula area three times in the last ten years), perhaps my ignorance can be excused. But I ought to know where Glen Avon is, and I don't. (It's off the 60 between the 15 and 91, west of Rubidoux and northeast of Mira Loma.)

Here are some other places that appear on Google Maps that I probably couldn't find independently if my life depended on it:

Declezville
Del Rosa
Home Gardens
Masson Grove (didn't Orson Welles live there?)
Northgate
Smiley Heights
Sierra Lakes

Oh well, at least I know where Guasti is. It's south of downtown Chino.