Can anyone identify this flower for me?

[Robert Boucher]

I have found it growing along Laganitis Creek, in Samuel P. Taylor State Park, as well as along Austin Creek, a tributary of the Russian River.

http://www.davidlnelson.md/Cazadero/UnknownFlower.htm

[Anonymous]

This orange-flowered member of the family Iridaceae is Crocosmia x crocosmiflora, an introduced garden escape/ weed.