Step 1.
click download
https://cams-lacounty.hub.arcgis.com/pages/cams-data
Step 2.
When unzip file, must use xxx.gdb as geodatabase folder name. Otherwise, Qgis would not read this folder.
Step 3.
Select feature intersect with city boundary, then export feature
Step 4.
Edit attribute table, follow 911 Standard,
Step 5.
elevation field is not meters from sea level.
Instead it is number of level. 0 means ground, surface. bridge cross over from above will be 1. Railroad pass through underground will be -1.
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