Named natural features are often notable, provided information beyond statistics and coordinates is known to exist. This includes mountains, lakes, streams, islands, etc. The number of known sources should be considered to ensure there is enough verifiable content for an encyclopedic article. If a Wikipedia article cannot be developed using known sources, information on the feature can instead be included in a more general article on local geography. For example, a river island with no information available except name and location should probably be described in an article on the river.
Many artificial geographical features may be mentioned in plenty of reliable sources, but they may not necessarily be notable. The inclusion of a man-made geographical feature on maps or in directories is insufficient to establish topic notability.
Artificial geographical features that are officially assigned the status of cultural heritage or national heritage, or of any other protected status on a national level and for which verifiable information beyond simple statistics is available, are presumed to be notable.
Populated, legally recognized places are typically presumed to be notable, even if their population is very low. Even abandoned places can be notable, because notability encompasses their entire history. Census tracts, Abadi, and other areas not commonly recognized as a place (such as the area in an irrigation district) are not presumed to be notable. The Geographic Names Information System and the GEOnet Names Server do not satisfy the "legal recognition" requirement and are also unreliable for "populated place" designation.[1][2]
Populated places without legal recognition are considered on a case-by-case basis in accordance with the GNG. Examples may include subdivisions, business parks, housing developments, informal regions of a state, unofficial neighborhoods, etc. – any of which could be considered notable on a case-by-case basis, given non-trivial coverage by their name in multiple, independent reliable sources. If a Wikipedia article cannot be developed using known sources, information on the informal place should be included in the more general article on the legally recognized populated place or administrative subdivision that contains it.
Disputed regions are generally considered case-by-case. Their notability for Wikipedia is independent of the validity of their claims. Sometimes it may be more appropriate to merge these articles into ones on a broader conflict or political movement, or to merge articles on multiple disputed names for the same region into one article.
Buildings, including private residences, transportation facilities and commercial developments, may be notable as a result of their historic, social, economic, or architectural importance, but they require significant in-depth coverage by reliable, third-party sources to establish notability.
Artificial features related to infrastructure (for example, bridges and dams) can be notable under Wikipedia's GNG. Where their notability is unclear, they generally redirect to more general articles or to a named natural feature that prompted their creation, e.g., to an article about the notable road it carries or the notable obstacle it spans.
Train stations have no inherent notability and are not presumed notable for simply being train stations, but may be notable if they satisfy the WP:GNG criteria, the criteria of another subject-specific notability guideline, or the criteria of a different section of this notability guideline.