Culture thumb|upright=1.2|Newbill-McElhiney House, St. Charles Historic District St. Charles lies near the eastern end of the Katy Trail, a long state park that was adapted from railroad right-of-way. Since the late 1970s, there has been rapid new home construction, commercial and population growth in the St. Charles area. The phrase "Golden Triangle" was coined by developers of this area in the 1980s, referring to the St. Charles County region bordered by highways Interstate 70, Interstate 64, and Route 94.
Culture thumb|upright=1.2|Newbill-McElhiney House, St. Charles Historic District St. Charles lies near the eastern end of the Katy Trail, a long state park that was adapted from railroad right-of-way. Since the late 1970s there has been rapid new home construction, commercial and population growth in the St. Charles area. The phrase "Golden Triangle" was coined by developers of this area in the 1980s, referring to the St. Charles County region bordered by highways Interstate 70, Interstate 64, and Route 94.