Fishing in Franklin County, Idaho
County seat: Preston. Population 14,194.
- 10lake pages
- 8launch sites
- 5river pages
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The Franklin County water rundown
Preston is the seat of Franklin County, a county of 14,194 people at the 2020 Census. Region lines track watersheds, and 100% of the listed water here lands in the IDFG Southeast Region.
The county's 10 lake pages stretch over 3,966 acres, with Oxford Slough on top. Launching comes down to 8 launch sites, managed as 8 IDFG. IDFG also lists 2 walk-in access sites for fishing from the bank without a ramp.
Census 2020 population and county seat; IDFG Idaho Fishing Planner (list of Idaho waters), read November 7, 2026. IDFG Fishing and Boating Access Sites layer (ArcGIS service), read November 7, 2026.
IDFG, BLM and Forest Service sites of Franklin County mapped
IDFG Fishing and Boating Access Sites, BLM and Forest Service launch points, Fishing Planner lake points (outlet) and stream midpoints. Checked November 2026.
Paged reservoirs and lakes of Franklin County by Planner acres
| Lake | Acres | Launches | Kind | Game fish IDFG names |
|---|---|---|---|---|
| Oxford Slough | 2,325 | 0 | lake | |
| Twin Lakes Reservoir (Franklin County) | 437 | 1 | reservoir | bluegill and sunfish, largemouth bass, yellow perch |
| Oneida Narrows Reservoir | 421 | 1 | reservoir | walleye, yellow perch, cutthroat trout |
| Glendale Reservoir | 214 | 1 | reservoir | bluegill and sunfish, largemouth bass, yellow perch |
| Treasureton Reservoir | 152 | 1 | reservoir | rainbow trout, bluegill and sunfish, rainbow x cutthroat trout |
| Foster Reservoir | 129 | 1 | reservoir | largemouth bass, yellow perch, rainbow trout |
| Condie Reservoir | 86 | 1 | reservoir | bluegill and sunfish, largemouth bass, yellow perch |
| Lamont Reservoir | 84 | 1 | reservoir | bluegill and sunfish, largemouth bass, yellow perch |
| Winder Reservoir | 76 | 0 | reservoir | bluegill and sunfish, largemouth bass, yellow perch |
| Johnson Reservoir | 42 | 1 | reservoir | bluegill and sunfish, largemouth bass, yellow perch |
Surface acres as listed in the IDFG Idaho Fishing Planner, read November 7, 2026. Game fish are the Planner’s recommended species; IDFG prints no lake depths there.
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Around Preston, to 50 miles, rainbow trout appears on more lake guides than the rest.
IDFG Fishing Planner recommended game fish and stocking rows, counted per lake page within 50 miles; not a creel survey.
Further Franklin County lakes the Planner names
The Planner names 9 more lakes in Franklin County, shown with acres and kind.
| Water | Acres | Kind | Nearest town |
|---|---|---|---|
| Strong Arm Reservoir | 25 | reservoir | Preston |
| Tingey Lake | 20 | lake | Preston |
| Upper Nash Lake | 16 | lake | Preston |
| Legacy Lake | 13 | lake | Franklin |
| Horse Lake | 2 | lake | Franklin |
| Blue Lake (Franklin County) | 1 | lake | Franklin |
| Hidden Lake (Franklin County) | 1 | lake | Franklin |
| Wiggler Lake | 0 | lake | Franklin |
| Gibson Lake | lake | Franklin |
IDFG Idaho Fishing Planner (list of Idaho waters), read November 7, 2026.
Streams to wade or float in Franklin County
- Bear RiverIDFG recommended water, 2 USGS gauges
- Cub RiverIDFG recommended water, 38.2 mi Planner length
- Mink CreekIDFG recommended water, 13.2 mi Planner length
- Logan River53.7 mi Planner length
- Bear Creek1 USGS gauge, 3.7 mi Planner length
Small Planner streams across Franklin County (61)
- Cottonwood Creek25.1 mi
- Worm Creek24.1 mi
- Weston Creek21.3 mi
- Battle Creek19.9 mi
- Beaver Creek15.4 mi
- Twin Lakes Canal West Lateral13.5 mi
- Trout Creek12.3 mi
- Deep Creek11.8 mi
- Fivemile Creek11.2 mi
- Swan Lake Slough10.7 mi
- Strawberry Creek10.2 mi
- Maple Creek10.1 mi
- Twin Lakes Canal East Lateral9 mi
- Right Fork Williams Creek8.8 mi
- Stockton Creek8.6 mi
- Williams Creek7.4 mi
- Hoopes Creek6.8 mi
- Sugar Creek6.8 mi
- Station Creek6.6 mi
- Jenkins Hollow6.4 mi
- Birch Creek6.1 mi
- North Hoopes Creek5.9 mi
- Fox Hollow5.8 mi
- Foster Creek5.6 mi
- Crooked Creek5.5 mi
- Clifton Creek5.4 mi
- King Creek5.4 mi
- Cherry Canyon5.2 mi
- Oxford Creek5.2 mi
- Deep Creek4.9 mi
- Main Canyon4.9 mi
- Spring Creek (Franklin County)4.9 mi
- Oxkiller Canyon4.8 mi
- Kuntz Creek4.7 mi
- Spring Creek (Franklin County)4.4 mi
- Flat Canyon3.9 mi
- Carter Creek3.8 mi
- Dry Creek3.8 mi
- White Canyon3.5 mi
- Sant Creek3.3 mi
- Mine Hollow3.2 mi
- North Fork Third Creek3.2 mi
- Dirty Head3.1 mi
- Middle Fork Cherry Creek3 mi
- Post Hollow2.9 mi
- Sink Hollow2.9 mi
- Michael Creek2.8 mi
- Sheep Dip Hollow2.8 mi
- Hodge Nibley Creek2.6 mi
- Litz Creek2.2 mi
- Mine Hollow2.2 mi
- Left Fork Maple Creek2.1 mi
- Boss Canyon2 mi
- Davis Creek2 mi
- South Fork Dry Creek2 mi
- Graham Hollow1.9 mi
- South Hoopes Creek1.9 mi
- Pat Hollow1.8 mi
- Corral Hollow Creek1.6 mi
- Mill Canyon1.6 mi
- Mill Canyon1.3 mi
Streamflow across Franklin County
| USGS gauge | Latest reading | Time (ET) |
|---|---|---|
| Bear River At Idaho-utah State Line | 370 cfs, 9.20 ft gage height | Nov 13 7:45 pm |
US Geological Survey provisional data, retrieved Nov 13, 2026 8:32 pm ET. Provisional readings can be revised.
IDFG Idaho Fishing Planner (list of Idaho waters), read November 7, 2026. Stream lengths as printed in the Planner; USGS gauges live.
Fish trucked into Franklin County water since 2024
The Franklin County stocking log reads 2,782 releases and 6,163,996 fish, covering 11 waters.
- Glendale ReservoirRainbow Trout – Triploid, 1,070 fish, Catchable (12-14 inches), October 19, 2026
- Glendale ReservoirRainbow Trout – Triploid, 1,430 fish, Catchable (12-14 inches), October 16, 2026
- Foster ReservoirRainbow Trout – Triploid, 1,008 fish, Catchable (12-14 inches), October 15, 2026
- Treasureton ReservoirRainbow Trout – Triploid, 1,809 fish, Catchable (12-14 inches), October 14, 2026
- Bear RiverRainbow Trout – Triploid, 1,500 fish, Catchable (6+ inches), October 9, 2026
- Bear RiverRainbow Trout – Triploid, 1,500 fish, Catchable (6+ inches), October 9, 2026
- Mink CreekCutthroat Trout – Bonneville, 400 fish, Catchable (6+ inches), October 6, 2026
- Bear RiverCutthroat Trout – Bonneville, 3,322 fish, Catchable (6+ inches), October 6, 2026
- Bear RiverRainbow Trout – Triploid, 750 fish, Catchable (6+ inches), September 28, 2026
- Bear RiverRainbow Trout – Triploid, 750 fish, Catchable (6+ inches), September 28, 2026
- Bear RiverRainbow Trout – Triploid, 766 fish, Catchable (6+ inches), September 14, 2026
- Bear RiverRainbow Trout – Triploid, 766 fish, Catchable (6+ inches), September 14, 2026
Stocking rows as printed on the IDFG Fishing Planner water pages (date, species, number and size as listed), read November 7, 2026. Newest releases first.
Put-ins and bank sites of Franklin County
- Condie Reservoir boat rampCondie Reservoir, IDFG, boating access, ramp, dock, restroom, camping
- Foster Reservoir boat rampFoster Reservoir, IDFG, fishing access, ramp, dock, restroom
- Glendale Reservoir boat rampGlendale Reservoir, IDFG, boating access, ramp, dock, restroom, camping
- Johnson Reservoir boat rampJohnson Reservoir, IDFG, fishing access, ramp, dock, restroom, camping
- Lamont Reservoir boat rampLamont Reservoir, IDFG, boating access, ramp, dock, restroom
- Oneida Narrows Reservoir boat rampOneida Narrows Reservoir, IDFG, boating access, ramp, dock, restroom, camping
- Treasureton Reservoir boat rampTreasureton Reservoir, IDFG, boating access, ramp, dock, restroom
- Twin Lakes Reservoir boat rampTwin Lakes Reservoir, IDFG, boating access, ramp, dock, restroom, camping
Walk-to-the-water IDFG sites in Franklin County (2)
- Winder Reservoir fishing accessfishing access, restroom
- Oxford Reservoir fishing accessfishing access
IDFG Fishing and Boating Access Sites layer (ArcGIS service), read November 7, 2026. BLM and Forest Service points as published; lanes and ramp counts are not fields in any layer.
Bait over the line from Franklin County
- Morning Star Lanyardsbait and tackle shop, Pocatello, 55 miles
Yellow Pages and chain store listings; straight-line miles from Preston only for shops with an exact point.
Keeping within the limits in Franklin County
Most Franklin County water falls under the IDFG Southeast Region table shown here; check each water page for its own region and any special rule. Under Idaho Code 36-416 a season of fishing costs $28.75 with Idaho residency and $106.25 without it, before vendor fees.
| Group | Rule as printed |
|---|---|
| Bass | Bass limit is 6, both species combined; None under 14 inches |
| Brook Trout | Brook Trout limit is 25; Harvest allowed during any open season unless otherwise noted under Special Rules – if gear or bait restrictions are listed, they apply when fishing for Brook Trout |
| Cisco | Cisco limit is 30 |
| Kokanee | Kokanee limit is 6 |
| Sturgeon | Sturgeon – catch-and-release; Sturgeon must not be removed from the water and must be released upon landing; Barbless hooks, sliding swivel device to secure a weight, and a lighter test line to secure weight to sliding swivel device are required. See fishing regulations for details |
| Tiger Muskie | Tiger Muskie limit is 2, none under 40 inches |
| Trout | Trout limit is 6, all species combined; In rivers and streams, only 2 of the 6 trout may be Cutthroat Trout; Brook Trout are listed separately |
| Whitefish | Whitefish limit is 25; Harvest allowed during any open season unless otherwise noted under Special Rules – if gear or bait restrictions are listed, they apply when fishing for whitefish |
| Protected Nongame Fish | May not be harvested or possessed (also known as Green Sucker) |
| All Other Fish Species | No bag, length or possession limit |
Franklin County waters with their own printed rules (8)
- Bear RiverAll Waters Open All Year
- Condie ReservoirBass limit is 2, none under 20 inches
- Cub RiverAll Waters Open All Year
- Glendale ReservoirBass limit is 2, none under 16 inches
- Logan RiverAll Waters Open All Year
- Mink CreekAll Waters Open All Year
- Oneida Narrows ReservoirWalleye limit is 6
- Treasureton ReservoirTrout limit is 2, none under 20 inches
Region bag limits from Idaho Fishing Seasons and Rules, 2025-2027 for the Southeast Region, as printed on IDFG Fishing Planner water pages (the brochure PDF on idfg.idaho.gov was unreachable during site maintenance), read November 7, 2026. Fishing license fees as set in Idaho Code 36-416 (statute; IDFG sale prices add vendor and processing fees), read November 7, 2026.
Places bordering Franklin County
Idaho town guides that sit inside Franklin County
- Prestonpop. 5,591
- Franklinpop. 1,025
Neighbouring counties of Franklin County
- Bear Lake County27 miles east
- Oneida County36 miles west
- Bannock County41 miles northwest
- Caribou County45 miles north
What Piscifun sells that fits a trip to Franklin County
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Telling the Franklin County fish apart by sight
Photo: USFWS Midwest Region, Public domain
Photo: Thomas Quine, CC BY 2.0
Photo: USFWS Fish and Aquatic Conservation, Public domain
Photo: USFWS Mountain-Prairie, Public domain
Questions that come up about Franklin County water
How many launch sites are mapped in Franklin County?
8 launch sites in all, managed as 8 IDFG.
Which Franklin County lake spreads widest on the Planner?
Oxford Slough, at 2,325 acres in the IDFG Fishing Planner.
Which species show up on the most lake pages by Franklin County?
Rainbow trout lead the count of lake pages within 50 miles, followed by largemouth bass, yellow perch and bluegill and sunfish.
Is a bait counter listed anywhere in Franklin County, Idaho?
None in the county itself; the list above covers neighbouring Idaho stores.
Do any Idaho river outfitters work from Franklin County?
No guide lists this county; the Idaho guides page has the rest.
Which Idaho town handles Franklin County paperwork?
The seat is Preston.
What does an Idaho fishing license cost for Franklin County water?
Under Idaho Code 36-416 a season of fishing costs $28.75 with Idaho residency and $106.25 without it, before vendor fees.
Which Idaho counties are wrapped around Franklin County?
Neighbours by distance: Bear Lake County, Oneida County and Bannock County.
What IDFG region do Franklin County lakes fall under?
Mostly the IDFG Southeast Region (100% of listed water); check each water page.
Where do Franklin County waters depart from the region table?
The Planner prints special rules for 8 county waters with a page here, starting with Bear River; the list above shows the first ones.
How many fish went into Franklin County water lately?
2,782 IDFG releases listed on Planner pages, 6,163,996 fish; the newest went into Glendale Reservoir on Oct. 19, 2026.
Hitch up for Franklin County
Read a water's IDFG rule block before keeping fish.