west-branch-ausable-river

West Branch Ausable River is a river in New York.

It ranks #6 among the 12 waters of New York in the registry, and is of national prominence.

Also called West Branch of the Au Sable River, West Branch Au Sable, West Branch of the Ausable and Ausable River.

Fished for trout (inferred from the species listed).

Species: brown trout, rainbow trout and brook trout.

USGS GNIS record: 970755.

Stretches: Fox Farm Stretch.

Holes: Betters' Pool, Flume Pool, Frustration Pool, Red Barn Run, Shadow Rock Pool, Bassett Flats, Bergman Run and Quarry Hole.

Features: Monument Falls, Flume Falls, High Falls and Wilmington Dam.

Ski Jump Pool (hole). It is fishable. Whiteface Region Ausable River Fishing Map spot number 1 of 35, numbered upstream (Lake Placid end) to downstream (Au Sable Forks).

It is upstream of Red Barn Run.

86 Flats (hole). It is fishable. Whiteface Region Ausable River Fishing Map spot number 6 of 35, numbered upstream (Lake Placid end) to downstream (Au Sable Forks).

It is upstream of Quarry Hole.

It is downstream of Coty Flats.

Bushey's Hole (hole). It is fishable. Whiteface Region Ausable River Fishing Map spot number 33 of 35, numbered upstream (Lake Placid end) to downstream (Au Sable Forks).

It is upstream of Slant Rock #2.

It is downstream of Old Dump Run.

Carpenter's Island (feature). It is fishable. Whiteface Region Ausable River Fishing Map spot number 19 of 35, numbered upstream (Lake Placid end) to downstream (Au Sable Forks).

It is upstream of Fox Farm Stretch.

It is downstream of Greer Stretch.

Coty Flats (hole). It is fishable. Whiteface Region Ausable River Fishing Map spot number 5 of 35, numbered upstream (Lake Placid end) to downstream (Au Sable Forks).

It is upstream of 86 Flats.

It is downstream of Iron Bridge.

Edwards Stretch (stretch). It is fishable. Whiteface Region Ausable River Fishing Map spot number 30 of 35, numbered upstream (Lake Placid end) to downstream (Au Sable Forks).

It is upstream of Ledge Rock Pool.

It is downstream of White Birches.

Firehouse Run (hole). It is fishable. Whiteface Region Ausable River Fishing Map spot number 27 of 35, numbered upstream (Lake Placid end) to downstream (Au Sable Forks).

It is upstream of Stop Pool.

It is downstream of Lake Everest.

Greer Stretch (stretch). It is fishable. Whiteface Region Ausable River Fishing Map spot number 18 of 35, numbered upstream (Lake Placid end) to downstream (Au Sable Forks).

It is upstream of Carpenter's Island.

It is downstream of Hemlock Pool.

Hemlock Pool (hole). It is fishable. Whiteface Region Ausable River Fishing Map spot number 17 of 35, numbered upstream (Lake Placid end) to downstream (Au Sable Forks).

It is upstream of Greer Stretch.

It is downstream of Pump House Hole.

Iron Bridge (access). It is fishable. Whiteface Region Ausable River Fishing Map spot number 4 of 35, numbered upstream (Lake Placid end) to downstream (Au Sable Forks). Marked with a parking area.

It is upstream of Coty Flats.

It is downstream of Frustration Pool.

Island Run (hole). It is fishable. Whiteface Region Ausable River Fishing Map spot number 10 of 35, numbered upstream (Lake Placid end) to downstream (Au Sable Forks).

It is upstream of Shadow Rock Pool.

It is downstream of Monument Falls.

Jenning's Run (hole). It is fishable. Whiteface Region Ausable River Fishing Map spot number 21 of 35, numbered upstream (Lake Placid end) to downstream (Au Sable Forks).

It is upstream of Flume Pool.

It is downstream of Fox Farm Stretch.

Kraus Flats (hole). It is fishable. Whiteface Region Ausable River Fishing Map spot number 8 of 35, numbered upstream (Lake Placid end) to downstream (Au Sable Forks).

It is upstream of Monument Falls.

It is downstream of Quarry Hole.

Lake Everest (feature). It is fishable. Whiteface Region Ausable River Fishing Map spot number 26 of 35, numbered upstream (Lake Placid end) to downstream (Au Sable Forks).

It is upstream of Firehouse Run.

It is downstream of Slant Rock #1.

Ledge Rock Pool (hole). It is fishable. Whiteface Region Ausable River Fishing Map spot number 31 of 35, numbered upstream (Lake Placid end) to downstream (Au Sable Forks).

It is upstream of Old Dump Run.

It is downstream of Edwards Stretch.

Mill Stretch (stretch). It is fishable. Whiteface Region Ausable River Fishing Map spot number 35 of 35, numbered upstream (Lake Placid end) to downstream (Au Sable Forks).

It is downstream of Slant Rock #2.

Notch Stretch (stretch). It is fishable. Whiteface Region Ausable River Fishing Map spot number 13 of 35, numbered upstream (Lake Placid end) to downstream (Au Sable Forks).

It is upstream of Phillips Pool.

It is downstream of Bassett Flats.

Old Dump Run (hole). It is fishable. Whiteface Region Ausable River Fishing Map spot number 32 of 35, numbered upstream (Lake Placid end) to downstream (Au Sable Forks).

It is upstream of Bushey's Hole.

It is downstream of Ledge Rock Pool.

Phillips Pool (hole). It is fishable. Whiteface Region Ausable River Fishing Map spot number 14 of 35, numbered upstream (Lake Placid end) to downstream (Au Sable Forks).

It is upstream of Bergman Run.

It is downstream of Notch Stretch.

Pump House Hole (hole). It is fishable. Whiteface Region Ausable River Fishing Map spot number 16 of 35, numbered upstream (Lake Placid end) to downstream (Au Sable Forks).

It is upstream of Hemlock Pool.

It is downstream of Bergman Run.

Slant Rock #1 (feature). It is fishable. Whiteface Region Ausable River Fishing Map spot number 25 of 35, numbered upstream (Lake Placid end) to downstream (Au Sable Forks).

It is upstream of Lake Everest.

It is downstream of Betters' Pool.

Slant Rock #2 (feature). It is fishable. Whiteface Region Ausable River Fishing Map spot number 34 of 35, numbered upstream (Lake Placid end) to downstream (Au Sable Forks).

It is upstream of Mill Stretch.

It is downstream of Bushey's Hole.

Stop Pool (hole). It is fishable. Whiteface Region Ausable River Fishing Map spot number 28 of 35, numbered upstream (Lake Placid end) to downstream (Au Sable Forks).

It is upstream of White Birches.

It is downstream of Firehouse Run.

Welch Run (hole). It is fishable. Whiteface Region Ausable River Fishing Map spot number 23 of 35, numbered upstream (Lake Placid end) to downstream (Au Sable Forks).

It is upstream of Betters' Pool.

It is downstream of Flume Pool.

White Birches (feature). It is fishable. Whiteface Region Ausable River Fishing Map spot number 29 of 35, numbered upstream (Lake Placid end) to downstream (Au Sable Forks).

It is upstream of Edwards Stretch.

It is downstream of Stop Pool.

Sourced from 3 independent fly sites.

Sources: Dark Skies Fly Fishing (retrieved 2026-10-20), diyflyfishing.com, The Perfect Fly Store (retrieved 2026-10-20) and whitefaceregion.com.

Hatches

Trico

Well sourced. Sources give different windows; this shows the range. Attribution is unresolved.

  1. Jan
  2. Feb
  3. Mar
  4. Apr
  5. May
  6. Jun hatching
  7. Jul hatching
  8. Aug hatching
  9. Sep hatching
  10. Oct hatching
  11. Nov
  12. Dec

Reported windows differ: the chart gives June 15-Oct 15; another shop gives late July, August and September; the shop owner says the once-popular hatch has mostly died out.

Sources: The Perfect Fly Store, Dark Skies Fly Fishing, whitefaceregion.com

Stonefly

Well sourced.

  1. Jan
  2. Feb
  3. Mar
  4. Apr
  5. May hatching
  6. Jun hatching
  7. Jul hatching
  8. Aug hatching
  9. Sep hatching
  10. Oct
  11. Nov
  12. Dec

Chart dates May 20-Sept 30; the river's reputation rests on its stoneflies.

Sources: Dark Skies Fly Fishing, whitefaceregion.com

Blue-Winged Olive

Well sourced.

  1. Jan
  2. Feb
  3. Mar
  4. Apr
  5. May hatching
  6. Jun hatching
  7. Jul hatching
  8. Aug
  9. Sep
  10. Oct
  11. Nov
  12. Dec

Chart dates May 1-July 15.

Sources: Dark Skies Fly Fishing, whitefaceregion.com

Mahogany Dun

Well sourced.

  1. Jan
  2. Feb
  3. Mar
  4. Apr
  5. May
  6. Jun
  7. Jul
  8. Aug hatching
  9. Sep hatching
  10. Oct hatching
  11. Nov
  12. Dec

Chart dates Aug 15-Oct 15.

Sources: Dark Skies Fly Fishing, whitefaceregion.com

March Brown

Well sourced.

  1. Jan
  2. Feb
  3. Mar
  4. Apr
  5. May hatching
  6. Jun hatching
  7. Jul
  8. Aug
  9. Sep
  10. Oct
  11. Nov
  12. Dec

Chart dates May 10-June 15.

Sources: Dark Skies Fly Fishing, whitefaceregion.com

Sulphur

Well sourced.

  1. Jan
  2. Feb
  3. Mar
  4. Apr
  5. May
  6. Jun hatching
  7. Jul hatching
  8. Aug
  9. Sep
  10. Oct
  11. Nov
  12. Dec

Chart dates June 5-July 31; a shop owner says some sulphurs remain but fewer than in the past.

Sources: Dark Skies Fly Fishing, whitefaceregion.com

Blue Dun

Well sourced.

  1. Jan
  2. Feb
  3. Mar
  4. Apr
  5. May hatching
  6. Jun hatching
  7. Jul hatching
  8. Aug hatching
  9. Sep hatching
  10. Oct hatching
  11. Nov
  12. Dec

Chart dates May 15-Oct 15.

Sources: Dark Skies Fly Fishing, whitefaceregion.com

Isonychia

Well sourced.

  1. Jan
  2. Feb
  3. Mar
  4. Apr
  5. May
  6. Jun
  7. Jul
  8. Aug
  9. Sep hatching
  10. Oct hatching
  11. Nov
  12. Dec

Chart dates Sept 1-Oct 30; plays a big role toward September.

Sources: Dark Skies Fly Fishing, whitefaceregion.com

Grey Fox

Well sourced.

  1. Jan
  2. Feb
  3. Mar
  4. Apr
  5. May hatching
  6. Jun hatching
  7. Jul
  8. Aug
  9. Sep
  10. Oct
  11. Nov
  12. Dec

Chart dates May 15-June 25.

Sources: Dark Skies Fly Fishing, whitefaceregion.com

Hexagenia

Well sourced. Sources give different windows; this shows the range. Attribution is unresolved.

  1. Jan
  2. Feb
  3. Mar
  4. Apr
  5. May
  6. Jun hatching
  7. Jul hatching
  8. Aug
  9. Sep
  10. Oct
  11. Nov
  12. Dec
  • Jun, Jul, per a source
  • Jun, Jul, per a source

Reported windows differ: the chart gives June 20-July 15; the shop owner says around the end of June to the Fourth of July.

Sources: Dark Skies Fly Fishing, whitefaceregion.com

Green Drake

Well sourced.

  1. Jan
  2. Feb
  3. Mar
  4. Apr
  5. May
  6. Jun hatching
  7. Jul
  8. Aug
  9. Sep
  10. Oct
  11. Nov
  12. Dec

Chart dates June 1-20; another shop says early June.

Sources: The Perfect Fly Store, Dark Skies Fly Fishing, whitefaceregion.com

Drake Fly

Well sourced.

  1. Jan
  2. Feb
  3. Mar
  4. Apr
  5. May
  6. Jun hatching
  7. Jul
  8. Aug
  9. Sep
  10. Oct
  11. Nov
  12. Dec

Chart dates June 1-30, as listed.

Sources: Dark Skies Fly Fishing, whitefaceregion.com

Caddis

Well sourced.

  1. Jan
  2. Feb
  3. Mar
  4. Apr
  5. May hatching
  6. Jun hatching
  7. Jul hatching
  8. Aug hatching
  9. Sep hatching
  10. Oct hatching
  11. Nov
  12. Dec

Chart dates May 1-Oct 30; sedge caddis hatches are the most consistent.

Sources: Dark Skies Fly Fishing, whitefaceregion.com

Light Cahill

Well sourced.

  1. Jan
  2. Feb
  3. Mar
  4. Apr
  5. May
  6. Jun hatching
  7. Jul hatching
  8. Aug
  9. Sep
  10. Oct
  11. Nov
  12. Dec

Chart dates June 1-July 15.

Sources: Dark Skies Fly Fishing, whitefaceregion.com

Golden Drake

Well sourced.

  1. Jan
  2. Feb
  3. Mar
  4. Apr
  5. May
  6. Jun
  7. Jul hatching
  8. Aug
  9. Sep
  10. Oct
  11. Nov
  12. Dec

Chart dates July 1-31.

Sources: Dark Skies Fly Fishing, whitefaceregion.com

Slate Drake

Sourced.

  1. Jan
  2. Feb
  3. Mar
  4. Apr
  5. May
  6. Jun
  7. Jul
  8. Aug hatching
  9. Sep hatching
  10. Oct hatching
  11. Nov
  12. Dec

Last week of August to mid-October.

Sources: The Perfect Fly Store

Hendrickson

Well sourced.

  1. Jan
  2. Feb
  3. Mar
  4. Apr
  5. May hatching
  6. Jun
  7. Jul
  8. Aug
  9. Sep
  10. Oct
  11. Nov
  12. Dec

Kickoff mid-May; solid hatch and spinner falls start around May 14-15 per a shop owner.

Sources: Dark Skies Fly Fishing, whitefaceregion.com

Also named, timing not yet researched: Coffin Fly, Yellow Sally, flying ants.

Access, closures and rules change; check with the state agency before you go.