Pennsylvania · river

Hammer Creek

Hammer Creek is a 19.2-mile-long (30.9 km) tributary of Cocalico Creek in Lebanon and Lancaster counties, Pennsylvania, United States. Hammer Creek is dammed to form Speedwell Forge Lake before joining the Cocalico Creek downstream by the confluence of Middle Creek near the village of Rothsville. From Wikipedia

Flows into
Cocalico Creek

Flow now

Hammer Creek at Obie Rd nr Schafferstown, PA, 6 mi from the river.

32cfsat build, Nov 12, 11 AM MT

01529Oct 12Nov 11

Water temperature at the gauge: 49°F.

Also gauged at Conestoga River at Lancaster, PA: 178 cfs, Nov 12.

The season, November

Usually workable this week. Pick your window and fish it well.

  • Midgessizes 18 to 22
  • Small eggs and worms
  • Pheasant tail and zebra midge nymphsunder an indicator

Not enough daily record at this gauge to say what the week usually runs. Flows are not forecast; check the gauge the day before.

Brown Trout are spawning (October to December). Stay off clean, light-coloured gravel in riffle tails and pool tailouts, and leave paired fish alone.

Brook Trout are spawning (September to November). Stay off clean, light-coloured gravel in riffle tails and pool tailouts, and leave paired fish alone.

Mountain Whitefish are spawning (October to December). The egg bite behind spawning whitefish is the best winter nymphing of the year: an egg pattern below the riffles.

  • Egg patterns in the runs below the spawning gravel, never on it.

Written by the app's rules engine from the calendar, the gauge record and the snowpack, not by hand, so it says only what the data says. The weather for the week comes with the app.

Fly shops on this water

  • Creekside Fly & Tackle LeolaWebsite

Nearby waters

Every Pennsylvania water

Open Hammer Creek in FlyMaster for today's plan, the flies, and your own log here.

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Flows from the U.S. Geological Survey, snowpack from the NRCS SNOTEL network, text from Wikipedia (CC BY-SA 4.0). Built Nov 12.