Lost Lake is a large freshwater lake located in Mason County, Washington. At an elevation of 495 ft. and 122.6 acres, it's home to several species of fish, including kokanee, rainbow trout, largemouth bass, smallmouth bass and coastal cutthroat trout (resident). Lost Lake provides good shoreline access and a boat launch.
Stocked Fish: Rainbow,CutthroatLost Lake has been historically stocked with rainbow and cutthroat. The largest rainbow ever stocked is 5.88 lbs. This year so far, there has been 7 stockings of rainbow and cutthroat at an average of 0.83 lbs. In the past, Lost Lake stocked tens of thousands of rainbow and cutthroat averaging 0.87 lbs.
| Date | Quantity | Fish | 
| September 26, 2025 | 300 | Rainbow @ 0.96lbs | 
| September 22, 2025 | 2000 | Rainbow @ 1.08lbs | 
| April 28, 2025 | 2450 | Rainbow @ 0.96lbs | 
| April 9, 2025 | 200 | Rainbow @ 3.03lbs | 
| March 26, 2025 | 200 | Rainbow @ 3.03lbs | 
| March 17, 2025 | 4905 | Rainbow @ 0.4lbs | 
| January 16, 2025 | 75 | Rainbow @ 5.88lbs | 
| December 5, 2024 | 100 | Cutthroat @ 1.49lbs | 
| November 4, 2024 | 250 | Rainbow @ 1.09lbs | 
| September 23, 2024 | 2004 | Rainbow @ 1.08lbs | 
| July 9, 2024 | 75 | Rainbow @ 0.61lbs | 
| April 29, 2024 | 2460 | Rainbow @ 1lbs | 
| March 28, 2024 | 450 | Rainbow @ 3.03lbs | 
| March 19, 2024 | 4915 | Rainbow @ 0.36lbs | 
| January 11, 2024 | 75 | Rainbow @ 4.35lbs | 
| December 7, 2023 | 106 | Cutthroat @ 1.2lbs | 
| September 25, 2023 | 2102 | Rainbow @ 0.88lbs | 
| August 1, 2023 | 50 | Rainbow @ 0.71lbs | 
| July 25, 2023 | 50 | Rainbow @ 0.67lbs | 
| July 18, 2023 | 50 | Rainbow @ 0.58lbs | 
| July 11, 2023 | 50 | Rainbow @ 0.56lbs | 
| May 1, 2023 | 2436 | Rainbow @ 0.83lbs | 
| April 21, 2023 | 325 | Rainbow @ 3.03lbs | 
| March 31, 2023 | 330 | Rainbow @ 3.03lbs | 
| March 27, 2023 | 4912 | Rainbow @ 0.41lbs | 
| January 12, 2023 | 75 | Rainbow @ 5lbs | 
| December 16, 2022 | 100 | Cutthroat @ 1.33lbs | 
| September 26, 2022 | 200 | Rainbow @ 1lbs | 
| September 26, 2022 | 2100 | Rainbow @ 1.02lbs | 
| July 26, 2022 | 100 | Rainbow @ 0.9lbs | 
| July 19, 2022 | 100 | Rainbow @ 0.63lbs | 
| July 12, 2022 | 100 | Rainbow @ 0.63lbs | 
| May 2, 2022 | 2420 | Rainbow @ 0.79lbs | 
| May 2, 2022 | 2420 | Rainbow @ 0.79lbs | 
| April 22, 2022 | 400 | Rainbow @ 3.7lbs | 
| April 1, 2022 | 300 | Rainbow @ 3.13lbs | 
| March 14, 2022 | 4920 | Rainbow @ 0.46lbs | 
| January 13, 2022 | 75 | Rainbow @ 4lbs | 
| December 23, 2021 | 100 | Cutthroat @ 1.43lbs | 
| September 27, 2021 | 1100 | Rainbow @ 1.08lbs | 
| September 13, 2021 | 1000 | Rainbow @ 0.99lbs | 
| May 17, 2021 | 2420 | Rainbow @ 0.91lbs | 
| April 2, 2021 | 510 | Rainbow @ 3.57lbs | 
| March 22, 2021 | 4902 | Rainbow @ 0.44lbs | 
| January 28, 2021 | 113 | Rainbow @ 4lbs | 
| December 10, 2020 | 100 | Cutthroat @ 1.39lbs | 
| September 28, 2020 | 2100 | Rainbow @ 1.16lbs | 
| May 18, 2020 | 200 | Rainbow @ 5lbs | 
| April 29, 2020 | 100 | Rainbow @ 5lbs | 
| April 21, 2020 | 2444 | Rainbow @ 0.77lbs | 
					
						
					
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Lost Lake provides good opportunities for rainbow trout. There is also a chance to catch kokanee, largemouth bass, smallmouth bass and coastal cutthroat trout (resident) throughout the year.
| January | February | March | April | May | June | July | August | September | October | November | December | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Kokanee | ||||||||||||
| Rainbow trout | ||||||||||||
| Largemouth bass | ||||||||||||
| Smallmouth bass | ||||||||||||
| Coastal cutthroat trout (resident) | 
																					An modestly traveled lake, there has been some successful reports by anglers at Lost Lake over the past few years.
																			
						
						Anglers reported the most success with rainbow trout.
						
													
							A  list of the best bait to use for stocked rainbow trout.
											
 Image of Lost Lake
				      			
				      			Image of Lost Lake 
					      							      			
				      		There are a number of similar sized lakes relatively close to Lost Lake, including 
		      					      				Isabella Lake, Nahwatzel Lake, Island Lake, Lake Limerick and Phillips Lake.
		      					      			
		      			
		      			Or try our advanced Washington fishing lake finder - search for any species of fish, filter by stocked lakes only, lake amenities and more.
		      		
	      	
	      		For October:
	      													Yellow perch
						
																				Brown bullhead
						
																				Largemouth bass
						
																				Northern pikeminnow
						
																				Coastal cutthroat trout (resident)
						
												
			
			
			View Fishing Details
	      
	      	
	      		For October:
	      													Rainbow trout
						
																				Largemouth bass
						
																				Coastal cutthroat trout (resident)
						
												
			
			
			View Fishing Details
	      
	      	
	      		For October:
	      													Yellow perch
						
																				Rainbow trout
						
																				Largemouth bass
						
																				Smallmouth bass
						
												
			
			
			View Fishing Details
	      
	      	
	      		For October:
	      													Yellow perch
						
																				Rainbow trout
						
																				Largemouth bass
						
												
			
			
			View Fishing Details
	      
	      	
	      		For October:
	      													Bluegill
						
																				Rainbow trout
						
																				Largemouth bass
						
												
			
			
			View Fishing Details