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Rock, MI

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Worm Lake outlet to Sturgeon River (9.1 miles)

Class II-III+
5.7 Miles
Avg Gradient 69 fpm
Max Gradient 145 fpm

Gauge Information

low
3.06
8/20 3:00

Min Sug. Level:  5.65 ft* Max Sug. Level:  8 ft*

River Description

This river is far more continuous rapids than is typical of the Midwest! Do not take lightly the II-III rating! Paddlers should be strong, confident, intermediate paddlers, with an experienced group, before attempting this run at moderate to high levels. At such levels, most paddlers will be left with the impression of this river being essentially one long rapid, quite different from the usual pool/drop runs of the Midwest!

From the recommended put-in, a brief flatwater paddle brings you to some light rapids. Shortly you'll encounter a very low footbridge which will be a limbo at low-to-moderate levels, and will require portage at moderate-to-high levels. Soon thereafter the river assumes the character it will hold for much of it's length: essentially one, non-stop rapid. Trees in the current are not uncommon though usually can be paddled around. Be alert! As of April 2001 there was one beaver dam that could be 'snuck' by a paddle through the trees on the left.

While the 2.3 mile section above Hwy.28/141 generally does not exceed class II, it is recommended for it's warm-up value. If you are not completely comfortable with the style of boating you encounter on the upper reach, it may be advisable to abbreviate your trip at the Hwy.28/141 bridge. The pace decidedly picks up a notch downstream.

The river slows down a bit either side of the Hwy.28/141 bridge but soon resumes it's downhill race through the forest. The river is still generally class II, but you start encountering borderline III water the further downstream you proceed. As of April 2001 there was one large tree completely blocking the river. There is a brief respite in a swampy stretch that will warn you that you are soon approaching the most challenging section of the run. The river makes a turn to the left, tripping through waves and holes before turning sharply to the right at a rocky bend, where the action accelerates. This right-hand-bend often holds wood, though we've always been able to remove it to run the drop cleanly.

This drop signals the beginning of the steepest mile of the river. There is a wonderful rollercoaster ride of waves with a few lurking holes. Be on your toes and stay in your boat, as a swim here could take on epic proportions. This is a mile long class III rapid at medium to high flows. When the pace slackens off and the forest opens up, you will come to another low footbridge that signals the confluence with the Sturgeon.

There is a 3.4 mile flatwater egress paddle from here to the Plains Rd bridge on the Sturgeon. (This has been reflected in the length stated on the run name, but is not included in the "Length" or gradient figures in the description.)

Given the continuity of the whitewater and the ever-present danger of strainers on this small stream, the subjective difficulity is somewhat higher than the objective. Please exercise caution and discretion when paddling this reach, especially at higher flows.

Boaters looking for an additional challenge may consider finishing this trip by continuing downstream of the listed take-out to run Tibbets Falls on the Sturgeon (assuming the 'short take-out' is accessible.

Additional details and images available on
Midwest River Inventory

For additional description, see
Upper Midwest PaddleGuide

Click here for a large pdf article (872k) from the AW Journal, way back in 1981! (You must have Adobe Acrobat Reader for pdf format items.)

The article describes the following:
Michigan's

Upper Presque Isle,
Lower Presque Isle,
Lower Black,

Upper Silver,
Lower Silver,
Falls, and
Rock, (this reach)
and Wisconsin's
Lower Brunsweiler,
Montreal, W.Fk., and
Montreal Canyon.


Shuttle Information: Distance (one way): 7.9 miles, Estimated Time (each way): 22 minutes

View Larger Map (on which you can swap or change start/end points).


StreamTeam Status: verified
Last Updated: 2006-05-16 10:52:14

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Gauge

Gauge Description:

* The reference gauge is for the Sturgeon at Sidnaw. Flows on the Rock should be approximately 20-25% of that flow.

Min/Max are uncertain, and correlation is not assured.

Disclaimer: Be aware that indication of a 'runnable' level by the gauge does not necessarily mean that the river is runnable. In winter, gauge readings may be 'ice affected'. Sections of the river may be impassable due to ice. Use discretion for winter and early spring runs.
This is especially true for this run, as the end of the run involves a three mile paddle-out on a very low gradient section of the Sturgeon, which is likely to remain ice-choked well after other rivers have flushed free of ice!


A boater's gauge consisting of three (faded, black) lines painted on center bridge pier at Hwy.28/141 bridge, corresponds to minimum, moderate, and mongo! Since that gauge is fading, more recent sets of marks have been made on the East bridge support. Ignore the larger (and slightly older) set of marks here, and read the five newer alternating blue and orange lines.
"Low" will be water levels below the bottom blue mark. (The river can probably be floated down until the whole bridge support is dry, but will be boney and generally quite 'tame'.)
"Moderate" will be between the lowest blue mark and the next orange mark.
"High" is anything above that orange mark. (I can't imagine seeing it at any levels approaching the upper three marks!)

Sturgeon River nr Sidnaw [ MI ]

Current Conditions

Stage Flow Updated
3.06 8.7 8/20 3:00

Station Graphs


Linked Reaches

Search Results

Level Legend: Running Below Minimum Recommended Flow Above Maximum Recommended Flow Unknown
Descriptions of reaches with River Name in bold have been verified by a regional StreamTeam member.

State River Name/Section Class Level Rel. Level Updated
MI Otter, W.Br.— Pike Lake Rd to Hazel Swamp Rd (6.2 miles) II(IV) 3.06 ft *   low 8/20 3:00
MI Rock— Worm Lake outlet to Sturgeon River (9.1 miles) II-III+ 3.06 ft*   low 8/20 3:00
MI Sturgeon (Baraga/Houghton)— A) Sturgeon Canyon: Hwy.41 to Upper Falls (1.3 miles) IV-V 9 cfs   low 8/20 3:00
MI Sturgeon (Baraga/Houghton)— B) Tibbets Falls: Plains Rd to Sturgeon Gorge Rd (6.8 miles) I-IV 9 cfs   low 8/20 3:00
MI Sturgeon (Baraga/Houghton)— C) Sturgeon Gorge: Sturgeon Falls to road before Prickett Lk (4 miles) II-III 9 cfs   low 8/20 3:00
MI Sturgeon, W.Br.— Newberry Rd to S.Laird Rd (4.4 miles) I-IV 3.06 ft *   low 8/20 3:00

Station Description

AW Gauge ID:1828
USGS Station:04040500
HUC:04020104
Latitude:46.5842
Longitude:-88.5758
Class:4

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Disclaimer Data Sources

EPA Surf This Watershed

USGS Page for This Station

NPS MI Rivers Inventory


Journal Archive Articles



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