Golden Eagle-Toppmeyer Site
U.S. National Register of Historic Places
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Location	Western side of Quarry Rd., south of Illinois River Rd.[2]
Coordinates	38°54′55″N 90°31′13″W / 38.91528°N 90.52028°W / 38.91528; -90.52028
Area	45 acres (18 ha)
NRHP reference No.	79000816[1]
Added to NRHP	June 14, 1979

The Golden Eagle-Toppmeyer Site is a pre-Columbian archaeological site located near the confluence of the Illinois and Mississippi Rivers in Calhoun County, Illinois. The site is associated with the Havana Hopewell culture and has two main components: the Golden Eagle earthwork and the Toppmeyer habitation site. The earthwork, which dates from the Middle Woodland period (150 BC - 450 AD), is the only geometric earthwork from the period in the central Mississippi River valley. Two mounds are incorporated in the rounded earthwork; one is located at the center, and one is located at a gap which has been called the "entrance" to the earthwork. The Toppmeyer habitation site, which overlaps the western edge of the earthwork, dates from the Late Woodland period (750 AD). The overall site was likely a regional transaction center at which extensive trade and cultural exchange among Hopewell people in the Illinois River valley took place.^[2]

The site was added to the National Register of Historic Places on June 14, 1979.^[1]

v t e Hopewellian peoples
Woodland period List of Hopewell sites Mound Builders List of archaeological periods (North America)
Ohio Hopewell	Beam Farm Benham Mound Cary Village Site Cedar-Bank Works Dunns Pond Mound Ellis Mounds Ety Enclosure Ety Habitation Site Everett Knoll Complex Fort Ancient Fortified Hill Works Great Hopewell Road High Banks Works Hopeton Earthworks Hopewell Culture National Historical Park Indian Mound Cemetery Keiter Mound Marietta Earthworks Moorehead Circle Mound of Pipes Nettle Lake Mound Group Newark Earthworks Oak Mounds Orators Perin Village Site Pollock Works Portsmouth Earthworks Rocky Fork Enclosures Rocky Fork Mounds Seip Earthworks and Dill Mounds District Shawnee Lookout Shriver Circle Earthworks Stubbs Earthworks Tremper Mound and Works Williamson Mound Archeological District
Crab Orchard culture	Carrier Mills Archaeological District Cleiman Mound Hubele site Mann site Mount Vernon Site O'byams Fort site Wilson site Yankeetown site
Goodall focus	Goodall site Norton Mound group
Havana Hopewell culture	Albany Mounds State Historic Site Dickson Mounds Duncan Farm Golden Eagle-Toppmeyer Site Kamp Mound Site Mound House site Naples Archeological District Naples Mound 8 Ogden-Fettie Site Rockwell Mound Sinnissippi Mounds Toolesboro Mound Group
Kansas City Hopewell	Cloverdale archaeological site Renner Village Archeological Site Trowbridge Archeological Site
Marksville culture	Crooks Mound Grand Gulf Mound Marksville Prehistoric Indian Site Mott Archaeological Preserve
Miller culture	Bynum Mound and Village Site Ingomar Mound Miller Site Pharr Mounds Pinson Mounds
Point Peninsula complex	Lewiston Mound Serpent Mounds Park LeVescounte Mounds
Swift Creek culture Santa Rosa-Swift Creek culture	Crystal River Archaeological State Park Etowah Indian Mounds Leake Mounds Kolomoki Mounds Miner's Creek site Pierce Site Swift Creek mound site Third Gulf Breeze Yearwood site Yent Mound
Other Hopewellian peoples	Armstrong culture Copena culture Fourche Maline culture Laurel complex Saugeen complex Old Stone Fort (Tennessee)
Exotic trade items	Copper Galena Mica Fresh water pearls Obsidian Pipestone Sea shells
Related topics Ancient Monuments of the Mississippi Valley Black drink burial mound Ceremonial pipe Effigy mound Hopewell pottery Hopewell Ceremonial Earthworks Horned Serpent Eastern Agricultural Complex Underwater panther