Idaho | Idaho Panhandle / Benewah County
St. Maries River
Mashburn to St. Joe River
Route planning details, access notes, and local verification guidance.
Route location
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Need to know
Why this call
Conditions
Gauge history and hourly forecast
Use the gauge context and hourly forecast to verify local conditions before launching.
Gauge detail
Gauge history & hourly forecastDetailed view
Gauge
Recent trend
Checking preferred range.
Checking trend.
Gauge source
--Checking timestampMN DNR provides the current paddling level here, but not chart-ready recent samples.
Weather
Hourly forecast
Checking weather.
Loading today's forecast.
Next 8 hours
Short-route forecast
Checking the next several hours.
Route overview
Quick facts and what's next
Distance, difficulty, shuttle basics, and the near-term outlook before you commit to the drive.
Quick facts
Plan ahead
Upcoming outlook
These are early planning reads. Re-check live conditions before you commit to the drive.
Waiting on forecast.
Waiting on forecast.
Plan
Plan your trip
Launch points, shuttle details, distance, and access notes.
Route logistics
Access and shuttle
A roughly 28-mile Class II-III spring reach from the Highway 3 Mashburn crossing to the St. Joe River, with a long committed roadless corridor and changing wood in braided sections.
Prepare this trip
Take the plan with you
Download the canonical route, add a calendar hold, or send a simple float plan to your group.
Put-in
Mashburn / Highway 3 bridge put-inUse only the named public launch or landing; a nearby bank, bridge shoulder, fishing easement, or private campground is not substitute access.
Take-out
St. Joe River confluence take-outConfirm current closures, fire restrictions, seasonal gates, parking capacity, fees, launch condition, and Idaho invasive-species requirements before travel.
Plan this segment
Access caveats and watch for
Access caveats
- Use only the named public launch or landing; a nearby bank, bridge shoulder, fishing easement, or private campground is not substitute access.
- Confirm current closures, fire restrictions, seasonal gates, parking capacity, fees, launch condition, and Idaho invasive-species requirements before travel.
- Private banks are common. Do not land, scout, portage, or camp outside a signed public site or manager-designated corridor.
Watch for
- braided-channel wood and strainers
- long committed corridor
- cold spring water
- approximate access and parking
- rapidly changing runoff
Route gallery
See this route on the water
Photos help show what the access looks like and what the route actually feels like on the water.
Score & sources
Data and sources
See the gauge, weather, and source notes behind today's call.
Why this scoreToday's evidence strength is checking
Evidence strength mostly comes down to three things: how direct the active gauge is, how clear the range is, and how fresh the data is.
- Checking evidence-strength notes.
- Checking evidence cautions.
Data behind the scoreGauge, thresholds, and timing
These are the live readings and threshold notes behind today's score.
| Gauge site | St. Maries River near Santa, ID |
| Discharge | Checking |
| Gauge height | Checking |
| 24h trend | Checking |
| 24h change | Checking |
| Current band | Checking |
| Rain last 24h | Checking |
| Rain last 72h | Checking |
| Air temp | Checking |
| Water temp | Checking |
| Wind | Checking |
| Gusts | Checking |
| Rain timing | Checking |
| Target band | 1,000 cfs to 2,000 cfs |
| Low threshold | 600 cfs |
| High threshold | 3,000 cfs |
| Evidence strength behind the range | Official and local sources |
| Gauge observed | Checking |
| Paddle Today updated | Checking |
| Main source behind this score | American Whitewater direct-gauge correlation: about 600-3,000 cfs runnable; trip reports describe good 1,070-1,600 cfs and larger 3,800 cfs context |
| Gauge source | Checking |
| Weather source | Checking |
| Rainfall source | Checking |
NotesWhat to know before you go
These notes cover the access details, route quirks, and source caveats most likely to matter once you get there.
- Official route corridorMashburn to St. Joe River; About 28.1 river miles
American Whitewater St. Maries Mashburn-to-St. Joe reach record identifies the endpoint chain, river miles, or managed float corridor.
- Public access controlMashburn / Highway 3 bridge put-in to St. Joe River confluence take-out
Coordinates represent named public ramps, bank launches, park landings, or an explicitly described staging point.
- Direct live gaugeUSGS 12414900 - St. Maries River near Santa, ID
Gauge is on the named waterbody and supplies context only.
- Threshold postureNumeric cue retained for planning
The route remains planning-only; no live go/no-go score is asserted.
- Safety and land managementCurrent manager notices override this record
Treat this as a long committed Class II-III day: once below Mashburn, road access is limited and a full shuttle/float plan, repair kit, throw bags, first aid, and satellite communication are prudent. American Whitewater and trip reports document a large log in a braided channel near the lower reach. Scout all braids, keep a conservative line around strainers, and never assume an old report describes current wood. The direct 12414900 gauge is route-specific but the reach record is old and its access coordinates are very approximate. Use 600 cfs as a low runnable shoulder, 1,000-2,000 cfs as a conservative planning band, and 3,000 cfs as the upper published runnable shoulder only after same-day scouting.
- Camping classificationnearby_basecamp
No on-route camping is assumed. Use a lawful St. Maries-area basecamp or a pre-arranged private/public site and carry an emergency overnight contingency for the long committed reach.
- Image decisionIdaho Panhandle same-watershed context photograph
Approved route-area or same-river context; it does not depict every endpoint or current conditions.
- Overlap decisionRetained as a distinct access-to-access itinerary
Adjacent cards use different public endpoints and provide a different trip length, hazard set, skill tier, or operating boundary.
Verify it yourselfCheck the source links
Use these links to double-check the gauge, route details, and access notes before you head out.
- American Whitewater St. Maries Mashburn-to-St. Joe reach record
- Official access/map control
- USGS 12414900 monitoring location
- USGS 12414900 current conditions
- Additional threshold support
- USGS St. Maries River near Santa direct gauge
- Idaho Fish and Game Saint Maries River water record
- Idaho Fish and Game St. Maries River / Spicer Pond access
- Idaho Panhandle access guide
- North Idaho Rivers St. Maries flow and access guide
- Idaho Panhandle same-watershed context photograph
- Idaho boating and invasive-species requirements
Paddler reports
Recent notes from paddlers
A few quick notes from people who were on this route recently.
Reports
Paddler reports
See recent photos and notes from people on the route.
Share your trip
Keep exploring
More routes to check next
Compare another stretch on this river, or jump to nearby options before you pick a plan.
Quick answers
St. Maries River paddling FAQ
What water level is good for paddling St. Maries River?
Paddle Today watches St. Maries River near Santa, ID and treats 1,000 cfs to 2,000 cfs as the target band for this route, with weather and recent trend included in the final score.
Where does this St. Maries River route start and end?
This route starts at Mashburn / Highway 3 bridge put-in and ends at St. Joe River confluence take-out, about About 28.1 river miles on the water.
Is this St. Maries River route good for beginners?
This is listed as a moderate route. Expect more planning than an easy float, and use the live score, route notes, and source links before committing.
Flag a change
See something outdated?
Access, hazards, wood, and shuttle details change. Send a quick correction if something looks off.