A bar is a record of a flood
Every gravel bar you walk on was built by high water. The stones you see were not placed by the trickle running past in August — they were dropped when the river was a metre or three higher, roaring brown with snowmelt, and carrying gold along the bottom in the bedload. Gold is about nineteen times heavier than water and seven times heavier than the quartz sand around it, so it moves only when the current is strong enough to shift cobbles. It stops the instant the current slows. Reading a bar is simply asking: where did the flood slow down first?
That framing changes where you dig. Most beginners walk to the water’s edge at the downstream tail of the bar because the gravel is loose and easy. The flood that built the bar, though, hit the upstream head first, lost speed as it spread over the bar, and dropped its heaviest load there. The head of the bar, and the ground just downstream of whatever obstruction created the bar in the first place, is where to start.
Inside bends and the “slow side”
Rivers deposit on the inside of bends and erode on the outside. The outside bank — the cut bank — is where the current is fastest and deepest; gold does not stop there. The inside — the point bar — is where water spreads out, slows, and unloads. In flat, glaciated country like the Alberta prairies this is almost the whole story: the province’s own panning guide points recreational panners at point bars on the North Saskatchewan and Red Deer rivers, worked after spring high water has rebuilt them.
Look for the slow side on smaller streams too: the downstream side of a big boulder, the eddy below a bedrock rib, the seam where a fast chute meets slack water. Old-timers called the strip of concentrated gold that follows the slow path down a river a pay streak. It is rarely wider than a few metres, it crosses the channel from inside bend to inside bend, and it can sit a metre off where the water runs today.
What the surface tells you
Before you dig, walk the bar with your eyes down. Three things matter:
- Packing. Gravel that was laid down by strong current is tight, imbricated (stones tilted and overlapping like shingles, leaning upstream) and hard to kick loose. Loose, rounded, easy gravel is a recent, low-energy deposit and usually barren. Gold lives in the packed stuff.
- Black sand. Magnetite, hematite and ilmenite are heavy, dark, and travel with gold. Streaks of black sand on the surface of a bar after a flood mark where the heavies dropped out. It is not proof of gold — black sand is common — but it is proof the spot concentrates heavy minerals, which is the mechanism you are relying on.
- Bedrock and false bedrock. Gold works down through gravel until something stops it: bedrock, or a tight clay layer prospectors call false bedrock. If bedrock is exposed at the head of the bar, its cracks and the first few centimetres of gravel on top of it are the richest ground you will find. Crevice tools earn their keep here.
Test it like a survey, not a treasure hunt
Take a dozen test pans in a line from the head of the bar to the tail, and another line from the inside bank to the water. Fill each pan from the same depth — the packed gravel just above bedrock or clay if you can reach it, otherwise the bottom of your hole — and count the colours in each pan. Write the counts down or log them in the app. Ten minutes of counting tells you the shape of the pay streak; an afternoon of digging one hole tells you nothing.
Once the counts point somewhere, dig there and only there. Two colours a pan is background; ten is a spot worth the rest of the day; a picker is a spot to remember by GPS.
Rules that come with the bar
Bars are fish habitat. Salmon and trout spawn in exactly the clean gravel you want to dig, which is why B.C.’s hand-panning guidance asks you to fill your holes, leave streambed gravels in the stream, avoid the freshet and stay off spawning beds in fall. Never undercut a bank — it collapses, it silts the river, and in New Brunswick or Nova Scotia bank disturbance is a permit offence on its own. Clean, drain and dry your boots and pan between waterways; invasive species ride wet gear.
General information for recreational prospectors — not legal advice. Rules change and vary by site; check the official sources listed under this article and the LocalKarat “Can I pan here?” wizard before you go.
Sources
- Recreational hand panning — Province of B.C.
- “Going for Gold in Alberta” — recreational panning guide (PDF)
- Gold — USGS General Interest Publication
- Measures to protect fish and fish habitat — DFO
Updated 2026-09.