Pleasant Hill

Pleasant Hill, in Cass County, Missouri, has a genuine but old mineral record: a Missouri mineral locality index traces vivianite (an iron phosphate mineral) occurring as small nodules and crystals in soil in a local creek valley, and calcite occurring as brown and white crystals associated with coal — both documented by geologist G.C. Broadhead in surveys from 1894 and 1901. That's real, citable history, but it's more than a century old, with no modern source confirming a current site, access point, or land status. This is an honest gap: the mineral record is credible, but we have nothing to point a visitor toward today beyond "somewhere in a creek valley near Pleasant Hill."

Pleasant Hill straddles Cass and Jackson counties, Missouri. No specific creek, road, or modern access point was found for the historic vivianite/calcite occurrence.

No verified current method. Vivianite in soil deposits like this is typically found by digging/screening in creek-valley sediment rather than surface picking, but no source confirmed whether that's still viable or where exactly to try it near Pleasant Hill today.

Land status unverified — confirm ownership and permission before visiting. This is over a century-old survey data with no confirmation the original site is still accessible, undeveloped, or on land where digging would be welcome. Cass County is largely private farmland; assume permission is required unless you find a specific public parcel.