Ned Rig Fishing on Castaic Lake
Castaic Lake · California · West
Castaic Lake sits in the Tehachapi foothills at roughly 1,500 feet elevation, fed by the California Aqueduct system and stratified sharply through summer. The reservoir is split into the upper main lake and a smaller afterbay below the dam, each offering distinct structure — steep rocky points, submerged creek channels, and hard clay transitions from deep blue to shallow flats. Water clarity trends clear to slightly off-color depending on season, and the forage base is dominated by threadfin shad, rainbow trout stocked by CDFW, and an increasingly significant population of bluegill.
Ned Rig pairs a 3–4" ElaZtech-style floating plastic (TRD, Finesse TRD, or similar) on a 1/15–1/6 oz mushroom head jig. The bait's buoyancy causes it to stand upright on the bottom, creating a subtle action that triggers bites when nothing else will. Exceptional on hard bottom, gravel, and rock.
Ned Rig Setup for Castaic Lake
| Rod | 6'10"–7'2" medium-light spinning rod, moderate-fast action |
| Reel | 2500 size spinning reel |
| Line | 10 lb braid + 8 lb fluorocarbon leader |
| Weight | 1/15–1/6 oz mushroom jig head (Z-Man Finesse ShroomZ or similar) |
| Hook | Size 1 or 1/0 wide gap, built into jig head |
Seasonal Tactics on Castaic Lake
Lake: Pre-spawn largemouth push out of 25–40 ft depths toward rocky flat transitions and clay banks as water temps climb from the low 50s into the mid-60s; shallow swimbaits and drop shots on the 15–20 ft break produce before the fish commit to spawning areas.
Ned Rig: Deadly on pre-spawn fish holding on gravel and pea-gravel flats in 4–12 feet.
Lake: Thermocline locks in hard between 20 and 30 ft by late June, pushing fish to steep points and submerged channel edges just above the oxygen cutoff; deep drop shots and football jigs on 25–35 ft structure dominate, especially during midday heat.
Ned Rig: Work deeper rock piles and main lake points. Drag slowly, let it stand. Green pumpkin and watermelon dominate.
Lake: Cooling surface temps trigger shad migration into creek arms and shallow flats; topwater and fast-moving swimbaits in the 6–12 ft range intercept feeding largemouth before the fish slide back to deeper structure as nights cool below 55°F.
Ned Rig: One of the best techniques as fish get finicky before winter. Match shad colors on sandy/gravel bottom.
Lake: Cold-water periods slow activity but concentrate big fish on deep rocky structure in 35–55 ft; a slow-rolled swimbait or a drop shot with a 4-inch finesse worm fished with 20-second-plus pauses is more productive than most anglers are patient enough to execute.
Ned Rig: Best cold-water finesse technique after drop shot. Extremely slow drag on hard bottom near deep structure.
Best Conditions
Clear water, hard and rocky bottoms, post-cold-front, heavily pressured fish, any season except peak summer spawn
Use Z-Man ElaZtech plastics exclusively — they float and are nearly indestructible. Regular soft plastics sink and kill the technique.
More Techniques for Castaic Lake
Ready to fish Castaic Lake?
Ask Hank about current conditions, water temp, and exactly what to throw today.
Ask Hank →