Lewiston Lake Fishing Guide: Unraveling the Depths of Northern California’s Pristine Waters

Lewiston Lake, nestled in the heart of the Shasta-Trinity National Forest, beckons with its serene waters and hidden fishing treasures. Imagine casting your line into this 2,800-acre reservoir, surrounded by towering conifers and the majestic Trinity Alps. While Trinity Lake may steal the spotlight, Lewiston Lake holds its own charm, especially for avid anglers seeking a peaceful retreat. So, what’s the scoop on fishing here?

Latest Fish Plants

Fish here often?

  • Bookmark this page to check recent fish plant data before you head out on your trip.
  • Subscribe and get weekly California Fish Plant Data right in your inbox for the week ahead. We send out fish plant data for ALL fishing locations in California every Saturday at 7am PT🎣
  • Get additional subscriber-only data including πŸ“ˆ historical fish plant data and πŸ—ΊοΈ interactive maps with πŸ“ pins on our best spots at that location:

How To Read Fish Plant Graphs

To interpret fish plant graphs effectively, consider the following key elements:

  1. Blue Vertical Bars and Numbers:
    • Representation: The blue vertical bars on the graph represent individual fish plants.
    • Weight Measurement: The associated numbers indicate the total weight of the plants in pounds (lbs.) that occurred during a specific week.
    • Significance: Monitoring these bars helps identify weeks with higher planting activity, aiding anglers in selecting optimal times for fishing near recent plantings.
  2. Orange Trend Line:
    • Purpose: The orange trend line represents the moving average of all fish plant activities at the specified location.
    • Indicator of Activity: A rising trend line suggests a consistent increase in planting activity over the designated period. This indicates the potential for more catch opportunities and signifies a growing fish population over the weeks.
  3. Interpreting the Moving Average:
    • Upward Trend: A rising moving average implies an upward trajectory in planting activity, indicating an increasing number of fish being introduced into the area. This suggests a positive outlook for anglers, as it implies a larger and potentially more accessible fish population.
    • Downward Trend (Not Specified): The description does not provide information on the interpretation of a decreasing trend in the moving average. It might be beneficial to include information on what a decreasing trend could signify in terms of fishing prospects.
  4. No Data Present:
    • Possible Explanations: If no data is visible on the graph, it may indicate that the location had no fish plants in the last three months. Alternatively, the absence of data could be due to non-disclosure of fish plants for that location.
    • Natural Population: Some fishing areas in California rely on the natural growth of fish populations, and graphs may not show plants if this is the case.
  5. Graph Disclaimer:
    • Data Source: The graphs reflect a combination of publicly disclosed data and estimates. Some locations may disclose fish plants without specifying exact amounts.
    • Not Universal: Not all fishing areas have fish plants, and the natural growth of fish populations plays a significant role in many California fishing locations.

Understanding these elements will empower anglers to make informed decisions about when and where to fish based on historical fish plant data.

Note: If no data is present in the graph above, this location may not have had any plants the last 3 months, or may not have publicly disclosed plants. Graphs reflect both publicly disclosed data and estimates, as some locations disclose plants, but not exact amount.

Map & Fishing Location

First off, let’s talk fish. Lewiston Lake boasts an impressive array of species, from the iconic rainbow trout, which can reach a whopping 10 pounds, to the elusive brown trout and the smaller but equally thrilling brook trout. And let’s not forget about the kokanee salmon lurking in the deeper waters, offering a unique challenge for seasoned anglers.

Now, let’s dive into some history. Spanning nine miles in length with 750 acres of pristine waters, Lewiston Lake has a rich angling heritage. The Trinity Dam powerhouse plays a crucial role in shaping the fishing experience, with trout activity peaking when it’s in full swing. But fear not, whether you’re a fly-fishing aficionado or a novice angler, there’s a spot for everyone along the shoreline or out on the water.

For those new to the angling scene, we’ve got you covered with some insider tips. From leveraging the powerhouse’s activity to mastering the art of trolling, there’s a strategy for every fishing scenario. And with a 10 mph speed limit ensuring a tranquil atmosphere, you can explore the lake at your own pace, whether in a canoe or a small aluminum boat.

Now, let’s talk gear. Medium-action rods, smooth drag reels, and a variety of lures are essential for a successful fishing expedition. And if you need more gear recommendations, be sure to check out our Gearlist account for the latest tips and tricks.

So, are you ready to embark on a fishing adventure like no other? Armed with these insights, you’re all set to reel in some memorable catches at Lewiston Lake. Tight lines, fellow anglers, and may your fishing endeavors be filled with excitement and success in this tranquil oasis.

Types of Fish You Can Expect to Catch Here

  1. Rainbow Trout: Abundant throughout the lake, rainbow trout take center stage in Lewiston. Their large sizes, exceeding 10 pounds, make them a thrilling catch, especially in the spring and fall.
  2. Brown Trout: While less common than rainbow trout, brown trout in Lewiston Lake present a formidable challenge for anglers. Target them using live bait like minnows or nightcrawlers.
  3. Brook Trout: Smaller than their counterparts, brook trout inhabit the colder, higher-elevation streams feeding into the lake. Anglers can use small spinners or flies to entice these elusive fish.
  4. Kokanee Salmon: Found in the deeper waters of Lewiston Lake, kokanee salmon offer a unique fishing experience. Use downriggers and spoons to enhance your chances of a rewarding catch during spring and summer.

Exploring the Historical Significance

Lewiston Lake, situated at 1,900 feet, spans nine miles in length with 750 acres of pristine waters and 15 miles of shoreline. Despite its natural beauty, fishing quality can fluctuate, with the Trinity Dam powerhouse playing a pivotal role in angling success. When the powerhouse is active, trout fishing becomes exceptional, particularly from Lakeview Terrace upstream. Anglers can capitalize on the powerhouse’s influence by anchoring in the current and using night crawlers or opting for yellow Power Bait when it’s inactive. Fly-fishing specialists can explore tules along the western shoreline, while non-fly fishers can experiment with the fly-and-bubble technique.

The Department of Fish and Game contributes to Lewiston’s vibrant fish population by stocking rainbow trout, brook trout, and brown trout. A pen-rearing project adds to the lake’s allure, showcasing a conservation-conscious approach that can serve as an example for other lakes across the state. Despite being overshadowed by Trinity Lake, Lewiston Lake offers quality camping, fishing, boating, and hiking opportunities. With a 10 mph speed limit, the lake maintains a quiet and calm ambiance, ideal for anglers using canoes and small aluminum boats.

Top 5 Tips for First-Time Anglers

  • Power of the Powerhouse: Leverage the influence of the Trinity Dam powerhouse. When active, anchor in the current with night crawlers; when inactive, use yellow Power Bait near the point where the current flattens into the lake.
  • Fly-Fishing Exploration: Consider fly-fishing, especially near tules along the western shoreline. Wade out during the evening rise for an immersive angling experience.
  • Trout Trolling Techniques: Utilize traditional trolling methods as a last resort. Trail half a night crawler behind flashers to entice trout when other methods falter.
  • Pen-Rearing Project Insights: Stay informed about the pen-rearing project at Lewiston, where trout are grown until they reach three pounds. This knowledge can enhance your understanding of the lake’s diverse fish population.
  • Quiet Pursuits: Embrace the tranquility of Lewiston Lake with quiet water activities. The 10 mph speed limit ensures a calm atmosphere, perfect for anglers using canoes and small aluminum boats.

Top 5 Strategies and Tactics for Optimal Fishing

  1. Strategic Seasonal Approach: Plan your fishing expeditions in alignment with the seasons. Spring and fall are prime times for a successful catch, with different species flourishing in varying parts of the lake.
  2. Power of Anchoring: Capitalize on the powerhouse’s activity by anchoring strategically. Adjust your location based on whether the powerhouse is running or not, optimizing your chances of encountering trout.
  3. Fly-and-Bubble Technique: Non-fly fishers can experiment with the fly-and-bubble technique, which involves using a fly behind a bubble. This method can attract bites, adding versatility to your angling repertoire.
  4. Trolling Mastery: When other methods fail, master the art of trolling. Trail half a night crawler behind flashers for a reliable fallback when more specialized techniques prove challenging.
  5. Adapt to Changing Depths: Recognize the lake’s average depth of 20 feet. During the warmer summer months, when fish go deeper, adapt your strategies accordingly to ensure a productive angling experience.

Top 5 Recommendations for Fishing Gear

  1. Medium-Action Rods: Opt for versatile medium-action rods to navigate the diverse fishing scenarios presented by Lewiston Lake.
  2. Smooth Drag Reels: Choose spinning reels with smooth drag systems, ensuring a seamless angling experience during intense battles with large rainbow and brown trout.
  3. Diverse Lures: Experiment with a variety of lures, including spinners, worms, and salmon eggs. Tailor your lure choices to the specific fish species inhabiting Lewiston Lake.
  4. Check Our Gearlist: Explore our Gearlist account for precise recommendations on gear, offering insight into the equipment we use to maximize fishing experiences in Lewiston Lake.
  5. Conservation-Conscious Approach: Embrace a conservation-conscious approach with barbless hooks, artificial lures, and a commitment to leave no trace, preserving the pristine wilderness of Lewiston Lake.

Check out our Gearlist for the gear we for trips like this

Our Gearlist account lists all of the gear we use. Discover our top picks, where to snag them, and stay informed with our regular updates.


Lewiston Lake has been a beacon for anglers seeking solace and adventure amidst the serene beauty of the Shasta-Trinity National Forest. As we reflect on our fishing journey, it’s evident that this hidden gem holds a special place in the hearts of all who have cast their lines into its tranquil waters. So, what’s the final verdict on our angling escapade?

In essence, Lewiston Lake has proven to be a haven for both seasoned anglers and newcomers alike. With its diverse fish population, historical significance, and abundance of fishing strategies, there’s always something new to discover with each visit. Whether you’re battling with a trophy rainbow trout or quietly observing the natural wonders that surround you, Lewiston Lake offers an experience that transcends the ordinary.

As we reel in our lines and bid adieu to this enchanting destination, let’s not forget the lessons learned and memories made along the way. From the strategic prowess required to navigate the powerhouse’s influence to the tranquility found in a quiet afternoon on the water, Lewiston Lake has left an indelible mark on our angling spirits.

But our journey doesn’t end here. As we pack up our gear and head for home, let’s carry with us the spirit of Lewiston Lake – a spirit of adventure, camaraderie, and appreciation for the natural world. Whether we return to these pristine waters or venture forth into new angling territories, the lessons learned at Lewiston Lake will guide us on our future fishing endeavors.

So, as we bid farewell to Lewiston Lake, let’s cherish the memories we’ve created and the fish we’ve caught. And who knows? Perhaps our paths will cross once again on the shores of this tranquil oasis, where the fish are plentiful, and the angling adventures are endless. Until then, tight lines, fellow anglers, and may your fishing expeditions be filled with joy, excitement, and a deep appreciation for the wonders of nature.