Triangle UFO Sightings in South Dakota
35 triangle-shaped UFO sightings reported in South Dakota since 1979, peaking in 2010 (3 reports).
- Total sightings
- 35
- Span
- 1979–2021
- Peak year
- 2010 (3 reports)
- Dominant shape
- Triangle
1979–2021 · peak 2010 (3 reports)
Rapid City · SD, USA
I saw several crafts move both quickly and remain stationary.
Brookings · SD, USA
Triangular Shaped Drone
Hot Springs · SD, USA
I was entering Wind Cave National Park from the south end when I got out of my vehicle to get some fresh air from my long drive. I loo
Brookings · SD, USA
Triangular object with 7 lights on the bottom, appearing to be a few hundred feet from the ground. ((anonymous report))
Pierre · SD, USA
Blinding bright triangle. ((anonymous report))
Vale · SD, USA
During a thunderstorm I was taking phots from my 2nd floor window and got a pic of an unknown craft in the sky hovering when enhanced b
Dell Rapids · SD, USA
Silent, triangular shaped object with no lights!
Huron · SD, USA
3 red glowing lights.
Huron · SD, USA
The UFO looked BIG.
Huron · SD, USA
It was flashing different color of lights and moving up and down.
Sioux Falls (outskirts of) · SD, USA
Triangular, 30- 40 seconds, multiple bright lights moving away slowly with no sound at all.
Rapid City · SD, USA
Blue and red triangle above Rapid City
Yankton · SD, USA
5 lights seen to the north of Gavin's Point Dam near Yankton. group of 3 joined by 2 additional
Rapid City · SD, USA
flying triangle Rapid City South Dakota about 15 minutes after Report
Sioux Falls · SD, USA
light, triangle, airport
Sioux Falls · SD, USA
Triangle formation of lights moving quickly to the North, near Sioux Falls
Hudson · SD, USA
this is a huge triangle shape ufo with one big light and three smaller lights
Rapid City · SD, USA
Triangular object over Rapid City
Rapid City · SD, USA
Loud humming triangular craft observed over Western South Dakota moving at high speed
Sioux Falls · SD, USA
Large triangular delta wing looking 10 to 15 lights not bright dull and dim it moved very fast.
Kennebec · SD, USA
Bright triangular white light with two much smaller circular lights that flew with it. ((NUFORC Note: Overflight of ISS. PD))
Rapid City · SD, USA
Triangular Dark Silent Craft Over Downtown Rapid City, South Dakota
Sioux Falls · SD, USA
Triangle object without colored or blinking lights, shortly later a bright shere shaped object was scene.
Rapid City · SD, USA
the object was hanging in the air above us for about 15-20 secodns and flew away very slowly...
Rapid City/ Box Elder · SD, USA
Saw tri-angle lights under dark body while driving west on I-90.