Lewis and Clark State Historic Site is within the village limits, directly across from the Missouri River confluence.

[1] The Cahokia Creek Diversion Channel passes through the southern part of the village limits, reaching the Mississippi River at the Lewis and Clark Historic Site.

[8] The village filed suit on July 21, 2008, against multiple parties over the underground gas plume.

The corporation was found guilty of Clean Water Act offenses after its sustained pollution of Long Lake, a tributary of the Mississippi River, over a ten-year period.

This ended following the detection by EPA inspectors of a secret hazardous waste pipe in September 1996.

The location, just south of Hartford near the community of Mitchell, was listed as a Superfund priority cleanup site March 4, 2010.

Hartford is the birthplace of actor Clint Walker, known for the television series Cheyenne and for the movies The Ten Commandments and The Dirty Dozen.