Spanish Lake, Census-designated place in St. Louis County, United States.
Spanish Lake is a census-designated place in northeastern St. Louis County with significant educational and federal facilities. The community is home to schools and the National Archives facility, which preserves historical records for researchers.
The area's name comes from Spanish military forces who established a fortified outpost in 1768, beginning European settlement there. Fort Bellefontaine, built in 1806, became the primary military installation west of the Mississippi River before being relocated in 1827.
The National Archives facility in Spanish Lake maintains extensive collections of historical records, serving researchers and genealogists from across the United States.
The area is crossed by major highways that provide good accessibility for visitors. Schools and public facilities are spread throughout and easy to reach by vehicle.
Fort Bellefontaine, established in 1806 within Spanish Lake, functioned as the primary military installation west of the Mississippi River until its relocation in 1827.
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