Spring-fed ground under a rail-era town
Fort Branch grew up after 1852 around ground originally chosen in 1811 for a reliable spring-fed water source -- a practical advantage for a frontier fort, but a detail worth knowing for a modern property sitting on the same ground. Persistent nearby groundwater can keep crawlspace humidity elevated even when there's been no recent storm or flood.
Why a spring-fed site needs a moisture-source approach, not just cleanup
Moisture-source correction in Fort Branch means looking past visible mold to the groundwater and drainage conditions the town has carried since its earliest days, since ground that stayed wet enough to matter to an 1811 fort can still be doing the same thing to a 21st-century crawlspace.