This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these template messages) This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. Please help improve this article by introducing more precise citations. (May 2017) (Learn how and when to remove this template message) This article relies largely or entirely on a single source. Relevant discussion may be found on the talk page. Please help improve this article by introducing citations to additional sources.Find sources: "Long Lake Limestone" – news · newspapers · books · scholar · JSTOR (May 2017) This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: "Long Lake Limestone" – news · newspapers · books · scholar · JSTOR (May 2017) (Learn how and when to remove this template message) This section uses citations that link to broken or outdated sources. Please improve the article by addressing link rot or discuss this issue on the talk page. (March 2024) (Learn how and when to remove this template message) (Learn how and when to remove this template message)