# West Branch French Creek (French Creek tributary)

West Branch French Creek is a 28.69 mi (46.17 km) long tributary to French Creek that rises in Chautauqua County, New York and flows into Erie County, Pennsylvania. It is classed as a 2nd order stream on the EPA waters geoviewer site.

## Course

West Branch French Creek rises in the Town of Mina, New York in western Chautauqua County and flows southwest into Erie County, Pennsylvania and then turns south towards Wattsburg, Pennsylvania.

## Watershed

West Branch French Creek drains 77.89 square miles (201.7 km$^2$) of Erie Drift Plain (glacial geology). The watershed receives an average of 46.8 in/year of precipitation and has a wetness index of 474.55. The watershed is about 44% forested.

### Tributaries

| Name, Bank | River Mile (km) | Watershed Area in Square Miles (km$^2$) | Average Discharge | Mouth Coordinates | Mouth Elevation | Source Coordinates | Source Elevation | Remarks |
| Mouth | | 77.89 square miles (201.7 km$^2$) | 180.76 cu ft/s (5.119 m$^3$/s) | 41°59′56″N 079°48′47″W﻿ / ﻿41.99889°N 79.81306°W﻿ / 41.99889; -79.81306 | 1,273 ft (388 m) | 42°08′25″N 79°40′17″W﻿ / ﻿42.14028°N 79.67139°W﻿ / 42.14028; -79.67139 | 1,610 ft (490 m) | West Branch French Creek rises in the Town of Mina, New York on the French Creek divide and then flows southwest and south to meet French Creek in the Borough of Wattsburg, Pennsylvania. |
| Bailey Brook, left bank | 4.06 mi (6.53 km) | 4.63 square miles (12.0 km$^2$) | 9.14 cu ft/s (0.259 m$^3$/s) | 42°02′01″N 079°49′40″W﻿ / ﻿42.03361°N 79.82778°W﻿ / 42.03361; -79.82778 | 1,296 ft (395 m) | 42°03′48″N 079°46′34″W﻿ / ﻿42.06333°N 79.77611°W﻿ / 42.06333; -79.77611 | 1,660 ft (510 m) | Bailey Brook rises on the French Creek divide about 3 miles southeast of Little Hope, Pennsylvania. The brook then flows southwest to meet West Branch French Creek about 0.5 miles north of Lowville, Pennsylvania. |
| Alder Brook, right bank | 7.12 mi (11.46 km) | 6.63 square miles (17.2 km$^2$) | 12.63 cu ft/s (0.358 m$^3$/s) | 42°03′27″N 079°50′30″W﻿ / ﻿42.05750°N 79.84167°W﻿ / 42.05750; -79.84167 | 1,299 ft (396 m) | 42°03′58″N 079°53′46″W﻿ / ﻿42.06611°N 79.89611°W﻿ / 42.06611; -79.89611 | 1,335 ft (407 m) | Alder Brook rises on the LeBoeuf Creek divide about 2 miles east of Bogus Corners, Pennsylvania. The brook then flows east to meet West Branch French Creek about 3 miles north-northwest of Lowville, Pennsylvania. Alder Brook is the largest West Branch tributary by watershed area. |
| Townley Run, right bank | 11.00 mi (17.70 km) | 4.71 square miles (12.2 km$^2$) | 9.36 cu ft/s (0.265 m$^3$/s) | 42°05′03″N 079°50′55″W﻿ / ﻿42.08417°N 79.84861°W﻿ / 42.08417; -79.84861 | 1,312 ft (400 m) | 42°07′59″N 079°51′22″W﻿ / ﻿42.13306°N 79.85611°W﻿ / 42.13306; -79.85611 | 1,450 ft (440 m) | Townley Run rises near Greenfield Church on the Sevenmile Creek divide. The run then flows southeast to meet West Branch French Creek about 2 miles southwest of Little Hope, Pennsylvania. |
| Darrow Brook, left bank | 18.54 mi (29.84 km) | 6.50 square miles (16.8 km$^2$) | 12.84 cu ft/s (0.364 m$^3$/s) | 42°06′58″N 079°46′38″W﻿ / ﻿42.11611°N 79.77722°W﻿ / 42.11611; -79.77722 | 1,352 ft (412 m) | 42°07′42″N 079°45′18″W﻿ / ﻿42.12833°N 79.75500°W﻿ / 42.12833; -79.75500 | 1,720 ft (520 m) | Darrow Brook rises about 4 miles west of French Creek, New York within the Town of Mina. The brook then flows north and northwest entering Erie County, Pennsylvania and meeting West Branch French Creek about 0.25 miles southeast of Ashton Corners, Pennsylvania. Darrow Brook is the largest West Branch tributary by average discharge. |