# A Quebec amateur astronomer was scouting a campsite using satellite imagery in 2024 when he spotted a 25-kilometre ring around Lake Marsal, and geologists who reached it by floatplane the following year found shatter cones confirming a roughly 390-milli

> **Newsylist Open Intelligence Dossier** · First detected: 2026-09-21 18:29 UTC · Category: Science · Sources: 4 · Current Velocity: 2.5

## Key People, Organizations & Locations
Quebec, Lake, Marsal

## Multi-Source Evidence Table
| Source Outlet | Headline | Published (UTC) | Verification URL |
|---|---|---|---|
| inkorr.com | Quebec Province Yields Largest Meteorite Impact Crater Found in Five Years | 2026-09-21 10:00 | [Source Link](https://news.google.com/rss/articles/CBMipAFBVV95cUxQaUM1d2lWNHRVNGZwSGhXMWVmQzVnR2JabkpETlB2OTlEX2RiRzh5bkpsZlBYTks0cWI0WkNIWWFJQVh1MlRsUjNPVC05dkYzeVNQOUwtcUpUMnYyNllkcWR4ei1vcmZnckJwbG1ZTE1qYllCXzVuemVROHJ6b3VRSlRLNU1lTHIyNTZaaWlIWVp2M1dZWUtUNDl2RFVmRnBBYTgyWdIBqgFBVV95cUxQb1h0M1BlY0ZlM29qeWJvTzlhZEVHejVFbkEyTjdvaFpGTDhnMTRDekZ5UXlOdmxxNFJRYnhtNTdkaXNUVWpHQTRhMFJVakh5R3haQ1cxUV9TWjJUOGF4WWJ5cWhubWxlM2VlLXRsOXpLNV9iOU8tSjRvOVBBc1dObmViUWVUN2xKdGhQSlJUMGZlTHF1WTh3UnlrZzRvNEMwM0V3XzNaTG0wQQ?oc=5) |
| The Economic Times | A satellite map revealed a mysterious giant circle that was hiding in Canada for 390 million years. One am | 2026-09-21 10:00 | [Source Link](https://news.google.com/rss/articles/CBMiywJBVV95cUxQOGlvd2QwWmNjS2xyclp6djIyR3d5ZEFpRnROU051emgyZ0ozQlUwbEZ1U3pUOGc3VldTMUd5M2JMaDQyZGMxMzQ4SWlndlIzenNzajl5bXhPVjFzakUybVBQcFdoOHpKRUV1YnVZSEdUd2p2ZUlJWE9iTzFubktORnQ3dmZoY2t5OGphNVFlUU1zQnd1cnhjb0h1X0V0UzZHdWFuNDZUVDBXTm5vRXlZVXFtTjllWXdZNVBxVXU5VjFmdlhhcm1WRnFXRlFtLXZubWR2NFNjTnpxazNKdlhhTUhwRVE4MTgwQXRrNG96c3RkRWNkOUpibWM5ZjNyVE9LU2NTa2ZaV1NUcFJUZTlHWko2Y29ya3loZFlPdmJZX0RaTnBYcWZNdXdzMjR3a3pnNWlVblFBRTg5bWNrWF90MUI5elpPcHJFOUJJ0gHQAkFVX3lxTE1) |
| ScienceDaily | A strange circle on satellite maps turned out to be a 390-million-year-old impact crater | 2026-09-21 10:00 | [Source Link](https://news.google.com/rss/articles/CBMib0FVX3lxTE52UDh6N1cyclNVZDdIS3JDcmgtLU04TU1oV0VlRXZHWlhPeE9hbEpmV2lIWXdNTVFCaV9xXzdPYzB4OXFhN25jSm9rNENOUVYxYm5pM2Z0Sm5kX2lkNVI1UzJrblh6NEh5RmdyWFkwUQ?oc=5) |
| ScienceDaily | A strange circle on satellite maps turned out to be a 390-million-year-old impact crater | 2026-09-21 10:00 | [Source Link](https://news.google.com/rss/articles/CBMibkFVX3lxTE1XanMtSy1ySnRocWY2aGFEUXBiZ3prempuZEpKdEZkN0Z1bk5CWG14OEwyazAybENBeUY2enNxaklTTlFoVGI2TURNaDA3RHhUQk1VVmVrWldQWldlbjZSTHJHMXFsN2tiazRlT1lR?oc=5) |
| Space Daily | A Quebec amateur astronomer was scouting a campsite using satellite imagery in 2024 when he spotted a 25-kilometre ring around Lake Marsal, and geologists who reached it by floatplane the following year found shatter cones confirming a roughly 390-milli | 2026-09-21 10:00 | [Source Link](https://news.google.com/rss/articles/CBMixwJBVV95cUxPdjVrMlRGdU1XcWRSRV9tTExVY2ZMRUd5dGttWEtXMGl3RzYwb2MwekxVZzBXZV9hNG5PMDQwdFM0X2t5Q2tSZ1ktUktFMGhVa0VkaHlzYmhpTEZvZ3pqS29IYnk1azk5Unh5UFFQSHBveGZpaWhIbklwZzdGY29RXzR1ZGZMY29GWVRQMFVEVjJqQkxqbm5ybGpIUjlpX3ZrWHpFemJrbXc1a3czTjE0ZGppNGdRRzNSZ3FhNVNEaHJULW54MzByNDRUVFdTSml5UmJUNFBXTjkyWmJtMFh2SDZPNkF3RkROS3JwLVR6aEkyc3JBTFF1djlJRFQxZENtaHlzeW53Y0Nqd1BCOUVxZUh3dnFIUllERFB0UTcxTWNhOGJoOUk1SHVLcGhWbmtpS19qV19Jck9MUUJhT291NjZiWE90ZDg?oc=5) |

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