Quality:

Black River Group - geologic group in Illinois and West Virginia. Article “Black River Group” in English Wikipedia has 38.1 points for quality (as of July 1, 2025).
The article contains 14 references and 8 sections.
In June 2025 the article “Black River Group” was edited by 2 authors in English Wikipedia and written by 2 authors in all languages.
Since the creation of article “Black River Group”, its content was written by 31 registered users of English Wikipedia and edited by 31 registered Wikipedia users in all languages.
The article is cited 236 times in English Wikipedia and cited 236 times in all languages.
The highest Authors Interest rank from 2001:
- Local (English): #46745 in September 2024
- Global: #172602 in September 2024
The highest popularity rank from 2008:
- Local (English): #1544940 in September 2024
- Global: #2662089 in September 2024
There is 1 language version for this article in the WikiRank database (of the considered 55 Wikipedia language editions).
The quality and popularity assessment was based on Wikipédia dumps from July 1, 2025 (including revision history and pageviews for previous years).