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Iowa | North Central Iowa
Boone RiverTunnel Mill Canoe Access to Bell's Mill Park
Short remote Boone River section from the Iowa DNR-owned Tunnel Mill access to Bell's Mill Park, with dense hardwood banks, limited exits, campground-backed take-out logistics, and a direct Webster City gauge.
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Route location
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Route overview
Trip details
Access rules, camping and seasonal notes.
Permits, camping and season
Access and shuttle
Launch at Tunnel Mill and take out at Bell's Mill Park for a short remote Boone River day through dense hardwood banks. The route is calmer than Albright-to-Tunnel Mill but still requires wood, low-water, and private-bank judgment.
Access map
Put-in
Tunnel Mill Canoe AccessTunnel Mill is a rural wildlife-management access with parking for vehicles and canoe trailers, not a full-service launch park.
Take-out
Bell's Mill ParkBell's Mill has a concrete boat ramp, parking, restrooms, and campground context, but it is reached by gravel-road park access. Inspect the ramp before launch.
Road shuttle
Stage the take-out at Bell's Mill Park, then drive back to Tunnel Mill. Both endpoints are rural Hamilton County access points, so confirm road, parking, and ramp conditions before unloading.
Additional access notes
- The selected Webster City gauge is upstream of this lower segment. Use it as the product gauge, then make a same-day visual check for wood and depth.
- Stay with public accesses and marked public land. The surrounding Boone River corridor includes private banks.
More route and safety guidance
- Hamilton County says this section is known for calm water and remoteness, but downed trees can still block bends after high water.
- Use Tunnel Mill and Bell's Mill only; the surrounding river corridor is private-bank country outside marked public areas.
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Conditions
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Station details and river cameras
Station observations
USGS measurements
Measurement notes and coverage
These are observations at the station. Water depth and current can differ along your trip.
River camera · USGS
View at the gauge
Boone River near Webster City, IA. This view may be outside your paddling reach. Images are periodic and do not establish safe conditions.
Photos and recent reports
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Paddler reports
Recent notes from paddlers
A few quick notes from people who were on this route recently.
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Sources and methodology
Review source dates and published guidance below. We have not inspected this trip in person.
Why this scoreData reliability: checking
This rating reflects whether the gauge measures this part of the river, whether published water-level guidance is available, and how recently the data was updated.
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Data behind the scoreWater levels, published guidance and update times
These readings and published water-level limits help explain today’s score.
| Gauge site | Boone River near Webster City, IA |
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| Preferred range | 120 cfs to 1,100 cfs |
| Low threshold | 120 cfs |
| High threshold | 1,500 cfs |
| Evidence strength behind the range | Official and local sources |
| Gauge observed | Checking |
| Paddle Today updated | Checking |
| Main source behind this score | CanWePaddle Boone River Webster-City-to-Stratford range and Hamilton County cfs guidance |
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NotesPublished evidence and verification notes
These notes cover the access details, route quirks, and source caveats most likely to matter once you get there.
- Route segmentTunnel Mill to Bell's Mill, 5.1 mi
Hamilton County touring information lists Tunnel Mill Canoe Access to Bell's Mill Park as a 5.1-mile section with average float time around 2.5 hours in normal conditions.
- Published range120 to 1,500 cfs
CanWePaddle publishes an estimated runnable range of 120 to 1,500 cfs for the broader Webster City to Stratford Boone River route using USGS 05481000.
- Gauge check during route review · 2026-07-22USGS 05481000 at 147 cfs / 2.12 ft
This reading was saved when we checked the guide. It is not today’s water level. Check the current gauge and local conditions before paddling.
- Access supportTunnel Mill and Bell's Mill public areas
MyCountyParks says Tunnel Mill provides river access and parking for vehicles and canoe trailers, while Bell's Mill Park is on the Boone River with a concrete boat ramp, parking, restrooms, and campground context.
- Route characterRemote hardwood corridor
Hamilton County says this section is lined with dense hardwood forest, has a high elevation change, and is probably the most remote Boone section because of limited access.
Verify it yourselfCheck the source links
Use these links to double-check the gauge, route details, and access notes before you head out.
Other routes nearby
More on Boone River
All 6Nearby routes within 75 miles
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