Washington · Fishing
Fishing in Riverside, Washington
Riverside, Washington sits in the Okanogan Highlands, and the fishing around town is almost entirely lake-based — which suits a lot of anglers just fine.
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Riverside, Washington sits in the Okanogan Highlands, and the fishing around town is almost entirely lake-based — which suits a lot of anglers just fine. The local options include Horseshoe Lake, Booher Lake, and Castor Lake, all of which are small, accessible stillwaters that tend to fish best in spring and early fall when water temperatures are comfortable for trout. These aren't trophy destinations with stocked trophy programs or designated wild-trout water, but they're genuinely good spots for a half-day outing, especially if you're traveling with kids or just want to wet a line without a long hike. Horseshoe Lake in particular shows up consistently in the local listings, suggesting it gets regular use and is worth prioritizing if you're only making one stop. Access to these lakes is generally straightforward, and you won't need a boat to fish any of them effectively — a float tube or a bank rod works well on waters this size. Washington State fishing regulations apply, so make sure your license is current before you go and check the WDFW regulation pamphlet for any lake-specific rules on gear type or season dates.
Frequently asked questions
What kind of fish can I expect to catch at Horseshoe Lake, Booher Lake, and Castor Lake?
These are typical eastern Washington highland lakes, and stocked rainbow trout are the most likely target at all three. The Washington Department of Fish and Wildlife stocks many small lakes in Okanogan County seasonally, but you should check the current WDFW stocking report for exact timing and species before your trip.
Do I need a boat, or can I fish from the bank?
Bank fishing works well on small lakes like these. A float tube or small inflatable gives you more flexibility to reach drop-offs, but it's not necessary. Bring a longer rod if you're fishing from shore so you can reach deeper water without wading.
What time of year is best for fishing these lakes near Riverside?
Spring opener through early June and again in September and October are typically the most productive windows. Summer heat can push trout deep and slow surface activity significantly, especially in July and August.
What gear should I bring?
A light spinning rod in the 6- to 7-foot range handles most situations on these lakes. Small spinners, PowerBait, and worms cover the basics for stocked trout. If you fly fish, a 4- or 5-weight with a sinking-tip line is a practical choice for stillwater trout.
Are there any regulations I should know about before fishing these lakes?
Washington State requires a valid fishing license for anyone 15 and older. Beyond that, each lake can have its own rules around gear type, season dates, or catch limits, so check the WDFW 2024-2025 fishing regulation pamphlet specifically for Okanogan County lakes before you go. Don't rely on general statewide rules alone.
