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UFO Sightings in Diamond Bar, California

11 documented UFO sightings in Diamond Bar, California since 1977, peaking in 2015 (3 reports); most often described as chevron.

1977–2015 · peak 2015 (3 reports)

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Best documented case here

One strong report — not the whole list. Open it, then hop to related signals on the case page.

I was looking out the backyard at the mountains toward orange county border, and saw a white ball of light around the 57 freeway, about

Shape shifting UFO following flying snake

8 lights, crescent formation, in an odd cloud, moved in unison, disappeared in order from left to right as they exited the cloud.

If you want to see it I got it on my phone and its on my facebook

My girlfriend and I saw a two story pyramid with bright lights rolling up hill on Grand Ave in Diamond Bar California

Teardrop orb - lights moving rnd bottom, bright bright light on top-stay n place 10mn moved then diasppeared into air 3 helictrs chase

Observed disk shaped craft with dome while traveling n/bound on 57 FWY.

I'd just finished watching a video and had gathered my things to go upstairs. When I walked into my bedroom I saw I'd left the drapes

Green Pulse light seen for the second time in Diamond Bar. Last year the same light went horizonal across the sky. It was traveling fas

one craft intered and stoped east of me moved to my south viewed me met two other craft and left in a tryangel formation

Huge flying saucer type object observed closely on Pomona Fwy near Diamond Bar, CA in 1978.