Freestone
A river fed by runoff and rainfall rather than a spring or a dam, typically running over loose rock and cobble.
Freestone rivers rise and fall with the weather, warm up in summer and cool sharply in winter, and carry the loose, uneven rock the name describes. That is in contrast to a spring creek, which flows at a stable temperature year round, or a tailwater, which is controlled by dam releases.
The bottom is why the term comes up in gear discussions. Freestone cobble is uneven, unstable underfoot, and usually coated in algae, which makes sole choice on a wading boot matter more here than anywhere else.
Flows change fast. A freestone river can be unfishably high a day after rain and perfect two days later, which is why anglers who fish them check a USGS gauge before deciding whether to go.
Insect life is more seasonal on a freestone than on a spring creek, so hatches are concentrated and the fishing has more distinct peaks through the year.
On freestone rock, use studded rubber or felt and a wading staff. Plain lug soles slide on algae-covered cobble.
Related terms
Where this comes up
The guides that use freestone and show it on real gear.
Freestone is one of 206 terms in the glossary.
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