Oh my, I didn't realize the arch was gone!
Last night on eBay, I happened upon this rare 1910 photograph of Echo Park. (I've kept it XLRG to see all the glorious details)
I tried to find it again today, but it's gone.
"Looking south toward Sunset Boulevard from Morton Avenue and Echo Park Ave."
just for fun, Detail #1 (in the distance you get a glimpse of some oil wells)
I wonder if any of these structures still exist?
Detail #2
The structure I've pointed out somewhat resembles a reservoir/dam. (but I don't think it's in the right place for it to be that)
Luckily, I took a screen-grab of the information:
eBay
__