Formation over Longmont (north of; on I-25), CO

The report, as filed

On our way back from a camping trip in outside of Estes Park. We drove home through Loveland south on I-25 towards Broomfield.. After we were going down I-25 for about 15 minute south of Littleton. To the west I seen a blob in the sky. It was transforming but sort of a circular shape, it almost flowed like an amoeba, it was probably 3 or 4 miles from i25 and at least 5000 feet up in the sky, the off thing is that it seemed to have a cloaking device. We could all see the UFO once I spotted it, but it wasn't a defined color, it was not opaque but translucent, you could see the sky behind it but you knew it was there because it was an off color to the sky, a darker gray almost. But there was definetly a cloaking device, it didn't seem to advanced of a cloaking device for we were able to see the ship, so I wonder if this wasn't a secret military craft rather than an alien, the UFO seemed to just hover in the same area but it was still slightly moving. The cloaking device was seemingly flowing but the movement of the object was glitchy, almost laggy, but it didn't seem to move from the location it was over. We eventually got excited talking about it and we quit looking but we'd look back and see it for about a minute or two, then we couldn't see it anymore. I was with 3 other people + myself so 4 people total. I am 21, the other 3 observers were 20, there was 3 males and 1 female in our group. Excuse my grammar and structure of this report, I was excited and had to type this ASAP.

Held as-reported from National UFO Reporting Center (record NUFORC #113766). Witness text is preserved verbatim, including its spelling; nothing is edited beyond formatting.