The search for evidence of impacts on the Earth is an important one, and relatively recent impacts are valuable in terms of recovery of relatively intact extra-terrestrial material and in terms of assessing the impact risk to Human civilisation.

It is important to be open-minded (but not empty-minded) on this issue. Reports of impact features need to be assessed rationally, with a hint of skepticism in proportion to the hyperbole in any report.

In this particular case, a roughly circular feature is described, and recovery of magnetic material from the proximity is noted. Samples of this are described as having "Leisegang" structure which is alleged to be representative of iron meteorites

Whilst this could be a mis-translation of the classic Widmanstatten structure of iron meteorites, it also implies a scientific problem. Either the science is wrong, or the report is a poor one. In practice, Leisegang structures (basically growth rings) are the result of organic or chemical growth from a nucleus, whilst Widmanstatten structures are the intersecting (triangular) shapes of cubic crystals of slow-cooled iron, as seen in sections of iron meteorites.

Leisegang structures are more suggestive of botryoidal iron oxide aggregates in the near-surface terrestrial environment. These are commonly found in humid and swampy environments, exactly as described. Furthermore, swamps often contain circular depressions. Therefore, there is a strong chance that this particular feature is NOT an impact crater. Much better scientific reporting is required to substantiate the claim of an impact origin in this case.

Additionally, without accurate dating information (carbon-14, or other radiometric ages, tree-ring dates, archaeological artefacts etc.) any linkage with historical or traditional accounts is mere speculation.