# Freestone stream

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In [fly fishing](/source/fly_fishing), a '''freestone stream''' flows seasonally, based on the water supply. In the summer and fall, freestone streams grow warm and have reduced flow because water from snow melt is less readily available.<ref name=haensel>{{cite journal|last=Haensel|first=Carl|title=A Trout Stream Top to Bottom|journal=Pennsylvania Angler and Boater|volume=81|issue=2|pages=7–9|publisher=Pennsylvania Boat and Fish Commission|date=March–April 2012|url=https://www.fishandboat.com/Transact/AnglerBoater/AnglerBoater2012/MarchApril/Documents/04troutstream.pdf|accessdate=March 1, 2014}}</ref> In contrast to limestone streams, which flow over [limestone](/source/limestone) and [dolomite](/source/Dolomite_(rock)), freestone streams generally flow over [sandstone](/source/sandstone), [shale](/source/shale), and crystalline rocks.<ref name=freestone>{{cite web|last=Lindsey|first=Bruce D.|author2=Kevin J. Breen |author3=Michael D. Bilger |author4=Robin A. Brightbill |title=Major issues and findings—Biological communities and stream habitat|work=Water Quality in the Lower Susquehanna River Basin, Pennsylvania and Maryland, 1992-95, U.S. Geological Survey Circular 1168|publisher=U.S. Geological Survey|url=https://pubs.usgs.gov/circ/circ1168/nawqa91.d.html|year=1998|access-date=March 1, 2014}}</ref> Additionally, freestone streams are supplied by runoff and snowmelt, while limestone streams are usually fed by springs, providing cooler waters and a more stable [pH](/source/pH) balance.<ref name=freestone/>

==References==
{{reflist}}

Category:Water streams
Category:Fly fishing

{{Fishing-stub}}

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Adapted from the Wikipedia article [Freestone stream](https://en.wikipedia.org/wiki/Freestone_stream) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Freestone_stream?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.