Big Iron, |
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| Usual Difficulty | II-III (may vary with level) |
|---|---|
| Avg. Gradient | 29 fpm |
| Max Gradient | 52 fpm |
Quick Facts:
Location: White Pine to Silver City
Shuttle Length: 6.1 miles. (See details in "Directions" Tab.)
Character: Ledge drops in a fairly uniform-width channel.
Drainage area at put-in: approximately 97 square miles.
Put-in is approximately 760' elevation.
Take-out is approximately 600' elevation (Lake Superior, mean level).
Thus total elevation change is approximately 160'.
Reach consists of alternating sections of light bedrock/ledge rapids and moving water, plus a
bigger drop, Bonanza Falls. Bonanza comes at 4.5 miles into the run and may easily push
into class IV territory at higher flows.
Good photos of the falls are available online at:
Hunts-UPguide.com.
CopperCountry.com.
The resolution on Google Maps for this area is excellent. Therefore, we highly
recommended going to the 'Map' tab, clicking 'Satellite', zooming in to the maximum resolution
available (without losing image), and doing a 'virtual walk' of this reach!
Those seeking a longer run may wish to put-in about five miles upstream of White Pine (if the
logging roads are passable for access).
The (rather smaller) Little Iron lies immediately
to the West of this run, and may be a great 'companion-run' (if they prove both to be at runnable
levels) or the Big and Little Iron runs may be 'fall-back' runs for each other in the event one
is too high (or low) and the other may be runnable.
There are also runs nearby on the W.Br.Big Iron and Mineral River.
Accessing these rivers (as with the aforementioned upper section of the Big Iron) may require
navigating the maze of logging roads in the area, many of which are not seasonally maintained.
This will likely stymie any early spring attempts at access, but should allow later spring or
early summer runs.
Visual from put-in.
Drainage area at put-in is approximately 97 square miles.
This is about twice the size of the Falls River in L'Anse (48 sq.mi. at Hwy.41),
or about 1.5 times the size of the Silver River (64 sq.mi at it's gauge at Skanee Road).
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Add a Comment| Mile | Rapid Name | Class | Features (Legend) |
|---|---|---|---|
| 4.5 | Bonanza Falls | III+ |
Described as "60-foot-wide falls consisting of two separate drops spaced about 200 yards apart. The upper falls drops about ten feet; the lower about three feet." A decent photo of the falls (at low water) may be found at: Webshots first photo and Webshots second photo. This is part of a larger webpage which also has a fine write-up of hikers exploring many other sights within Porcupine Mountain State Park (including three other falls), and includes some wonderful history on the area. Check that out at: The Ruck Sack.