Aerial survey · USDA NAIP · public domain1830s frontier burying ground in rural Warren County
Monmouth, IL
Research updated May 2026
Age
All Ages
Cost
Free
Free public cemetery; daytime visitation only
Access
Limited Access
Grass, uneven ground, gravel access road
Equipment
Photos OK
Est. 1820 · Early Illinois Settlement · Frontier Burial Ground
Sugar Tree Grove Cemetery sits on a gravel road near the border of Warren and Henderson counties, south of the Quad Cities. The land predates white settlement: Sauk farmers used the grove for warm-weather crops. After settlers arrived in the early 1800s, a small congregation built a church on the rise and began burying their dead beside it. The church is no longer standing, and a plaque now marks the spot.
Find a Grave records 406 burials at the site, with the earliest stones dating to the 1820s. Among them is Rev. John Scott, born in Scotland, who served as the second pastor of the Sugar Tree Grove church for nineteen years before becoming a professor at Monmouth College. The cemetery is documented in Warren County genealogical surveys and listed in Illinois cemetery indexes.
Sources
Local tradition holds that the cemetery's southeast corner contains the unmarked burial of a Native American man killed by settlers during the area's early conflicts. The story, like much of the surrounding folklore, comes from community oral history rather than archival record.
Visitors and amateur investigators have reported persistent cool breezes that follow people through the cast-iron gates on hot summer days. Audio recordings made on site have been described as containing faint chanting; photographs have been described as showing indistinct figures and orbs. None of these accounts appear in published investigations or peer-reviewed paranormal research. Residents discourage after-dark visits, citing past trespassing and vandalism rather than supernatural risk.
Wander the rows of weathered Warren County headstones, many dating to the 1820s and 1830s. The most prominent burial is Rev. John Scott, second pastor of the original Sugar Tree Grove church and later a Monmouth College professor. Visit during daylight; the cemetery is on a gravel road south of the Quad Cities and residents discourage after-dark visitors.
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