WadeNot advised
Wading is the most sensitive plan today. Use protected edges only, avoid crossings, and downgrade quickly if clarity or current feels wrong.
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Fly fishing report · West
Mores Creek
A Highway 21 Mores Creek planning page built around close-to-Boise access, stocked-rainbow expectations, and honest calls about low summer water and traffic pressure.
Check flow & weatherToday's fishing decisionMost live data available
64
Use caution
Mores Creek is a cautious call right now.
Current USGS flow is 17 cfs and has been stable for about 6 hours. Today's flow is below the normal seasonal range, which begins near 25 cfs. This is below normal, so edge depth, temperature, and pressure matter.
Best supported approachFloat
Watch nextFlow: Current USGS flow is 17 cfs and has been stable for about 6 hours. Today's flow is below the normal seasonal range, which begins near 25 cfs.
Updated Aug 3, 1:06 AM UTCUsually refreshes about every 45 minutes
Best supported approachFloat
Compare wading, bank fishing, and floating before choosing how you will fish.
Bank / edgeNeed data
This report does not describe this as a primary mode. Verify legal access, depth, launches, and retreat options before planning around it.
Float · Best fit68/100
A float can fit better than wading only if launches, shuttle, boat skill, wind, and local rules all check out.
Check before you drive
Current flow and weather.
Look at whether the river is rising or falling, then check wind, rain, and storms. These can change both safety and fishing.
Loading current flow and weather.
Before you rely on this report
How current is this report?
Conditions can change quickly. Check these dates before you decide to fish, and open the official source when safety or rules matter.
- River conditions
- Checked Aug 2, 2026, 9:06 PM
- Fishing guidance
- Reviewed Jun 2, 2026
- Public access
- No reviewed map pin available
- Rules and closures
- Official rule links checked
High confidence in the current score inputs.
6 sources are listed below for you to open.
3 public access records are listed. Private spots are never shown.
Source checked Jul 30, 2026
Plan your access
Know where you can enter.
These are public parking, launch, trail, or recreation areas—not secret fishing spots. We never show an angler's private pins, notes, or photos here.
- 0
- Shown on map
- 3
- No map pin
Location checkedDescription only
01No map pin
Area description
Grayback Campground reach
A solid official Forest Service anchor above Idaho City with direct creek access below camp.
Restrictions and seasonal notes
The Highway 21 corridor gives Mores Creek a lot of practical access, but it also means noise, traffic, and visible water can tempt anglers into moving too often.
Forest Service sites like Grayback and Bad Bear are the best official anchors for clean day-use starts because they add parking, facilities, and predictable entry points.
02No map pin
Day use
Bad Bear Picnic Area and Campground
Useful lower-corridor access where the creek runs right along Highway 21.
Restrictions and seasonal notes
The Highway 21 corridor gives Mores Creek a lot of practical access, but it also means noise, traffic, and visible water can tempt anglers into moving too often.
Forest Service sites like Grayback and Bad Bear are the best official anchors for clean day-use starts because they add parking, facilities, and predictable entry points.
03No map pin
Parking
Highway 21 pullout water
IDFG's directions make clear that much of the creek is reached through roadside pullouts, which is the core strength of this fishery.
Restrictions and seasonal notes
The Highway 21 corridor gives Mores Creek a lot of practical access, but it also means noise, traffic, and visible water can tempt anglers into moving too often.
Forest Service sites like Grayback and Bad Bear are the best official anchors for clean day-use starts because they add parking, facilities, and predictable entry points.
How to fish it
Mores Creek is a practical quick-trip river when flows and temperature still support it.
This is one of the simplest Boise-area trout options to reach, but it should be approached as an access-friendly small-river day, not a destination-size trophy fishery. Check the flow first, then decide whether you are looking for a short rainbow-and-whitefish session or whether low water and warm afternoons have already cut the window down too far.
- Use RiverReports first for the public chart, then confirm the creek trend with USGS 13200000 above Robie Creek near Arrowrock Dam.
- IDFG says stocked hatchery rainbows provide most of the sport-fishing opportunity here, with kokanee moving into the lower creek in some years.
- Highway 21 pullouts and Forest Service sites like Grayback and Bad Bear make Mores Creek easier to scout than many Idaho foothill streams.
- When summer heat or traffic pressure builds, fish early, keep expectations realistic, and avoid forcing an afternoon window that is already gone.
Why the score looks this way
FlowUse caution
USGS shows 17 cfs with a stable over about 6 hours trend. Today's flow is below the normal seasonal range, which begins near 25 cfs. This is below normal, so edge depth, temperature, and pressure matter.
Public alertUse caution
An Air Quality Alert is active near this forecast point, so the score is capped at caution until smoke and access conditions are checked. NWS alert: Air Quality Alert issued July 31 at 12:02PM MDT by NWS Boise ID.
Best mode nowUse caution
Float: A float can fit better than wading only if launches, shuttle, boat skill, wind, and local rules all check out.
SeasonHelps score
Early summer: Usually the easiest blend of access, flow, and stocked-fish opportunity.
WeatherHelps score
The NWS forecast is about 79F with Patchy Smoke.
Read the water
What changes the plan.
Mores Creek is strongest as a fast-planning local trout day in spring, early summer, and cooler fall windows. It is weakest when anglers treat a small accessible creek as if it should fish big all day through hot weather and low water.
Cool moderate flow
The best condition for short dry-dropper or light nymph sessions along the Highway 21 corridor.
Low clear flow
Fish early, downsize, and focus on shade, current seams, and undercut banks.
Runoff color
Treat the creek as a scouting stop or move on; small roadside water gets hard to read quickly when color rises.
Hot late-summer afternoons
If the water feels too warm or shallow, shorten the trip or skip it rather than forcing trout to pay for a marginal window.
Your trip plan
Know when to go—and when to skip it.
Best flows
Cool moderate flows that keep roadside pockets alive without burying the creek in runoff color.
When to skip
Skip when hot afternoons, shallow water, or muddy runoff turn the creek into a temperature or visibility compromise.
Local plan
Fish early, start at one official access like Grayback or Bad Bear, and build the day out from the first stretch that still has cool moving water and clean holding seams.
Backup water
If Mores Creek looks too thin or warm, switch to Boise River for bigger water or plan a cooler remote option like Deadwood instead of trying to squeeze a bad window.
Hatches & flies
Bring a flexible box.
TimingWhat to watchUseful flies
SpringMidges, BWOs, and small caddisZebra midge, BWO nymph, caddis pupa, hare's ear
Fly pattern · report suggests “Zebra midge”Zebra MidgeLook for a very slim tapered thread body, evenly spaced contrasting wire rib, a small bead, and no tail or wing. The reviewed classic is black with silver wire and a silver bead. Red, olive, brown, glass-bead, jig-hook, resin-coated, or tailed forms must remain labeled variations rather than replacing the classic identity.See photos & how to fish it ↗
Fly family · report suggests “BWO nymph”Blue-Winged Olive PatternsBWO describes a hatch group, not one fly. Nymph, emerger, dry, cripple, and spinner profiles must stay separate because they occupy different parts of the water column.See family guide ↗+ 2 more reviewed guides in the Fly Box Early summerCaddis, PMDs, and attractor windowsElk hair caddis, PMD dry, stimulator, pheasant tail
Fly pattern · report suggests “Elk hair caddis”Elk Hair CaddisLook for a tented elk- or deer-hair wing, clipped hair head, dubbed body, rib, and hackle palmered along the body. The body color should be labeled because tiers often match different natural caddis colors.See photos & how to fish it ↗
Fly family · report suggests “PMD dry”Pale Morning Dun PatternsPMD names an insect group, not one fly. Pale nymphs, trailing-shuck emergers, upright or low-riding duns, cripples, and spent-wing spinners stay visibly separate.See family guide ↗+ 2 more reviewed guides in the Fly Box SummerTerrestrials and evening caddisAnt, beetle, hopper-dropper, caddis soft hackle
Fly family · report suggests “Ant”Ant PatternsAnt patterns can be foam, fur-bodied, winged, or sunken. The narrow waist and paired body lobes matter more than one material recipe.See family guide ↗
Fly family · report suggests “beetle”Beetle PatternsBeetle flies range from simple foam shells to hair-bodied and sunken forms. A rounded back and compact profile distinguish the family from ants and hoppers.See family guide ↗+ 1 more reviewed guide in the Fly Box FallBWOs and midgesParachute BWO, RS2, zebra midge, small bugger
Fly family · report suggests “Parachute BWO”Blue-Winged Olive PatternsBWO describes a hatch group, not one fly. Nymph, emerger, dry, cripple, and spinner profiles must stay separate because they occupy different parts of the water column.See family guide ↗
Fly pattern · report suggests “RS2”RS2Start with the beadless architecture: two dark-dun Microfibett tails separated behind a slim, tightly twisted and visibly segmented dubbed abdomen; a fuller thorax; and saddle-hackle web clipped into a short angled wing bud. Rim Chung's original-style form uses natural beaver dubbing and hackle web. CDC- or Antron-wing ties, beads, curved hooks, flash, and tailless Avatar-style flies must remain labeled variations.See photos & how to fish it ↗+ 2 more reviewed guides in the Fly Box 01
Approach Mores Creek as a collection of short productive stops, not as an all-day march through identical roadside water.
02
Fish the first clean pocket or undercut seam well before moving because access convenience can trick you into rushing.
03
Start early in warm weather and give up sooner if the creek looks too skinny or too warm.
04
Keep expectations aligned with a close-to-town stocked-trout creek and you will usually fish it better.
Rules & closures
Check the official rules before you go.
Open the agency page to confirm the exact river section, species, season, tackle rules, limits, and emergency closures.
Official links checkedRules for this river or sectionNo special rule found
We did not find a special rule for this river.
We checked the state source but did not find a clearly supported exception for this river. Check the official rules for the exact section you plan to fish.
Rules checkedJul 30, 2026
Report a correction ↗Always follow the official rule
This summary helps with trip planning. The linked agency rule is the one you must follow.
Updates from anglers
What anglers are seeing.
Recent observations from general areas of Mores Creek. We review every update before it appears and never publish exact fishing spots, private access details, or photo locations.
Angler updates are not loading right now.
You can still use the river plan above. Check back later for recent observations from other anglers.
Where this report comes from
Open the sources we checked.
Fishing guidance checked: Jun 2, 2026
Site check: Jul 14, 2026. We regularly test report links, live scores, flow and weather data, and page loading. The content date changes only when the fishing guidance or its sources change.
flowRiverReports: Mores CreekflowUSGS monitoring location: Mores Creek above Robie Creek near Arrowrock DamregulationIdaho Fishing Planner: Mores CreekaccessBoise National Forest Grayback Campground and Group SitesaccessBoise National Forest Bad Bear Picnic AreasafetyNational Weather Service forecast point near Mores Creek
Common questions
Before you leave.
Is Mores Creek worth fishing as a fly angler?+
Yes, when you treat it as a practical close-to-Boise trout creek with realistic expectations instead of a destination-sized river.
What should I watch most closely here?+
Watch flow, water temperature, and how much pressure the Highway 21 corridor is taking that day.
What gauge should I use for planning?+
Start with RiverReports and USGS 13200000 above Robie Creek near Arrowrock Dam for the broad corridor trend.