Big Fork - B) Big Falls (0.25 mile)


Big Fork, Minnesota, US

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B) Big Falls (0.25 mile)

Usual Difficulty IV-V+ (varies with level)
Length 0.25 Miles

Joel running the entrance to the final rapid.


Joel running the entrance to the final rapid.
Photo taken 10/25/10

Gauge Information

Name Range Difficulty Updated Level
BIG FORK RIVER AT BIG FALLS, MN
usgs-05132000 500 - 3000 cfs II-III(IV) 81d18h27m 452 cfs (rc= -0.2 )
Likely too low for good whitewater. (We can use additional input on flows here. Add a comment or report if you have first-hand experience at these flows.) Gauge (1480 sq.mi) is immediately below this short reach, thus portrays exactly the flow.


River Description

The MN DNR brochure describes the falls as "a series of four falls dropping 40 feet in a quarter mile, rates a Class VI." However, elsewhere it says "Big Falls (Class IV-VI)." Parks flank either side of the river, with camping, drinking water, and picnic shelters and tables.

Cliff Langley provides (2011-03-21):

Big Falls on the Big Fork River is located right in the town of Big Falls. Heading north on Highway 71 a bridge will cross over the Big Fork River and Big Falls begins under this bridge. We expected a short section of class IV. We were hoping for it to be a fun section of river because the online gauge read 1500 cfs the day before, being "upper runnable". Scott (a fellow kayaker who paddled here a few weeks prior) said it was medium-low when he paddled it at 900 cfs. His take was that it was a really fun and there were multiple lines.

The river forks around a rock island and meets again about a hundred yards downstream of the bridge. Most of the water flows in the right channel. Rarely does something meet or exceed ones expectations but this section of whitewater did just that. Expecting a fun class IV-ish run we found a long continuous section of whitewater. We put in on the right channel beginning with a class III wave train into a very beefy class IV+ rapid full of diagonal waves and big holes. More crashing waves lead into a section of class III+ and IV- boogie water where the two channels converge. Here you could go river right and scrape over some slides, safe of the big holes and crashing surging waves on river left, but what fun is that?

The final 100 yards or so (on river left) was a pumping class V with a real big water feel. The river left entrance to the class V begins with a juicy slide leading into a wave hole then immediately into a more narrow aerated slide funneling into a powerful wave hole just off the steep rocky left bank. A short and fast moving aerated pool of 20 feet leads to a pour over needing to go left or right of: To the left the river pounds off the left banks forming violent surging wave holes, to the right the river forms an aerated slide into a powerful refraction wave followed by a huge surging wave. We both went right, which was a hard move because the entrance wanted to flip you and push you left. The waves were really powerful and you definitely had to charge into them. Also the last huge wave is likely deep and could be an awesome play spot for the courageous play boater. There is a second good play wave just downstream that is good sized but seems dwarfed by the monster above it.

Overall at high flows (it was about 1300 cfs) this is a great section of whitewater. It is at least a ¼ mile of action and worth the drive north and hiking up to run multiple times. The entrance to the last section is sort of similar to parts of Glen Avon Falls on the West Fork of the Beaver River. The final big stuff reminds me of rapids on the Rio Pacuare in Costa Rica, where big waves pound off the river banks, or the wall shots and wave holes on the Split Rock when it is insanely high. (Although the Big Fork has its own character and is deeper than the Split Rock River.)

It is worth doing for several reasons: it runs a lot, even when nothing else seems to be going, its action packed, and it is very accessible. Very fun section of water, above 1100 cfs is legitimate class IV and V whitewater.


Thanks, Cliff, for that excellent write-up!


StreamTeam Status: Not Verified
Last Updated: 2011-05-03 16:29:03

Cliff punching through the last few waves.

Detail Trip Report  Cliff punching through the last few waves.  @Big Fork B) Big Falls (0.5 mile), MN(4.64MB .jpeg)

Joel running the entrance to the final rapid.

Detail Trip Report  Joel running the entrance to the final rapid.  @Big Fork B) Big Falls (0.5 mile), MN(4.88MB .jpeg)


Gauge Information

Gauge Description:

Gauge/flow analysis
(based on USGS data, 1909-2009)
Drainage area at gauge 1480 sq.mi.
Minimum daily mean flow (1940.01.10) 14 cfs
90% of time flow exceeds 83 cfs
10% of time flow exceeds 1,800 cfs
Maximum daily mean flow (1950.05.08) 14,800 cfs
10/90 ratio ('flashy-ness')
(under 3 is quite steady, over 10 is quite 'flashy')
21.7

Gauge Information

Name Range Difficulty Updated Level
BIG FORK RIVER AT BIG FALLS, MN
usgs-05132000 500 - 3000 cfs II-III(IV) 81d18h27m 452 cfs (rc= -0.2 )
Likely too low for good whitewater. (We can use additional input on flows here. Add a comment or report if you have first-hand experience at these flows.)
Gauge (1480 sq.mi) is immediately below this short reach, thus portrays exactly the flow.
RangeWater LevelDifficultyComment
0 - 500 cfs extremely Low-barely Low II-III(IV) Likely too low for good whitewater. (We can use additional input on flows here. Add a comment or report if you have first-hand experience at these flows.)
500 -1000 cfs barely runnable-med runnable II-III(IV) Likely low to low-moderate whitewater. (We can use additional input on flows here. Add a comment or report if you have first-hand experience at these flows.)
1000 -2000 cfs med runnable-a bit pushy runnable III-IV+(V) Likely moderate (optimum?) flows. (We can use additional input on flows here. Add a comment or report if you have first-hand experience at these flows.)
2000 -3000 cfs a bit pushy runnable-high runnable IV-V Likely high (possibly too high?) flows. (We can use additional input on flows here. Add a comment or report if you have first-hand experience at these flows.)
3000 -5000 cfs somewhat High-somewhat High IV-V(V+) Likely too high for reasonable boating. (We can use additional input on flows here. Add a comment or report if you have first-hand experience at these flows.)
5000 -15000 cfs somewhat High-extremely High IV-V+ Likely outrageously high. (We can use additional input on flows here. Add a comment or report if you have first-hand experience at these flows.)

Report - Reports of Big Fork B) Big Falls (0.25 mile) and related gauges

Reports give the public a chance to report on river conditions throughout the country as well as log the history of a river.

Reports

When River/Gauge Subject Level Reporter
1y108d10h36m /Big Fork-B) Big Falls [MN] Cliff punching through the last few waves. n/a Cliff Langley
1y108d10h42m /Big Fork-B) Big Falls [MN] Joel running the entrance to the final rapid. n/a Cliff Langley
1y108d10h47m /Big Fork-B) Big Falls Cliff punching through the last big waves n/a Cliff Langley

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 B) Big Falls (0.25 mile), Big Fork Minnesota, US (mobile)