Green Mill Run (Green Springs Park, Greenville NC)
A small urban creek that cuts through the Yorktown Formation as it winds through Greenville and East Carolina University. Green Springs Park is the most popular access point — locals and ECU geology students have been finding small Pliocene shark teeth in its gravel bars for decades. Teeth are typically 0.25–1 in (think tiger, sand tiger, mako, the occasional small meg) — this is a 'lots of small teeth' creek, not a trophy spot.
Walk the creek after a hard rain has scoured the bed and dropped back to safe wade-able levels (1-3 days post-storm). Sift gravel bars on the inside of bends and at riffle tail-outs with a 1/4 in mesh. Look in the lag of dark phosphate pebbles — teeth ride with them.
Green Springs Park is a free public Greenville city park; park at the playground lot and walk down to the creek. The creek itself crosses public, ECU, and private parcels — stay in the public park and the public right-of-way under road bridges.
Surface collecting of fossils from the streambed is generally tolerated on public park land in NC; do not dig into stream banks (erosion + private-property issues) and do not enter ECU property without permission.
- Flash flooding — never enter the creek during or right after heavy rain
- Urban runoff: water quality is poor, wear boots and wash hands
- Snakes and snapping turtles in summer
- Slippery gravel and submerged debris
- Hit it 24-72 hours after a 1+ inch rain — that's when fresh teeth wash into the gravel bars
- The bend just downstream of the Green Springs Park footbridge is the classic spot
- Bring a small sieve and a film canister — finds here are small, easy to lose
- Pair with a Saturday at the Aurora Fossil Museum spoil piles (~45 min east) for a full NC Yorktown day
Shark teeth findable here
Trophy = headline find · Rare = real score · Uncommon = some trips · Common = most trips.
Also findable here
The beachcomber's bonus round — what else the geology gives up.
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