Hypereutrophic Lakes in Wyoming

33 hypereutrophic lakes in Wyoming. Very high nutrients, dense algae, poor clarity.

Hypereutrophic lakes (TSI above 70) are at the upper end of the productivity scale: visible algal blooms most weeks of summer, clarity often under 3 feet, and meaningful risk of harmful-algal-bloom toxin events. 33 hypereutrophic lakes are on the {{stateName}} books. Almost none of them are deep — 0% break 50 feet. Shallow basin plus heavy nutrient input is the consistent recipe.

Hypereutrophic lakes overwhelmingly grade D or F — the trophic class and the grade are measuring closely-related dimensions of the same underlying nutrient regime.

#	Lake	County	Grade	Clarity	Depth	TSI
1	Nla Lake	Fremont	B	19.6 ft	-	72
2	Nla Lake	Teton	B	26.9 ft	-	71
3	Nla Lake	Sublette	B	18.6 ft	-	72
4	Nla Lake	Sublette	C	10.5 ft	-	75
5	Nla Lake	Sublette	C	9.8 ft	-	75
6	Nla Lake	Uinta	C	7 ft	-	80
7	Nla Lake	Albany	C	8.8 ft	-	80
8	Nla Lake	Laramie	C	7 ft	-	100
9	Nla Lake	Lincoln	C	10.3 ft	-	79
10	Nla Lake	Natrona	C	8.2 ft	-	84
11	Nla Lake	Lincoln	C	13 ft	-	82
12	Nla Lake	Park	C	6 ft	-	77
13	Nla Lake	Sublette	C	5 ft	-	84
14	Big Sandy Reservoir	Sweetwater	D	0.7 ft	-	70
15	Nla Lake	Fremont	D	0.5 ft	-	81
16	Big Sandy Reservoir Rtpd	Sublette	D	0.7 ft	-	73
17	Hereford Reservoir	Laramie	D	3.6 ft	-	82
18	Nla Lake	Teton	F	4.9 ft	-	91
19	Glendo Reservoir Riverine Littoral	Platte	F	1.1 ft	-	75
20	Woodruff Narrows Reservoir	Uinta	F	0.9 ft	-	74
21	Festo Lake	Platte	F	0.8 ft	-	79
22	Horseshoe Reservoir	Big Horn	F	1.8 ft	-	72
23	Green River Inflow Lake	Sweetwater	F	1.6 ft	-	71
24	Goshen Hole Reservoir	Goshen	F	1.1 ft	-	73
25	Bump-Sullivan Reservoir	Goshen	F	0.2 ft	-	94
26	Brooks Lake	Fremont	F	-	-	99
27	Brooks Lake Creek	Fremont	F	-	-	71
28	Brooks Lake	Fremont	F	-	-	71
29	Wheatland Reservoir Rtpd	Albany	F	-	-	74
30	Scotty Lake	Sweetwater	F	-	-	102
31	Spring Lake D	Carbon	F	-	-	71
32	Kinnear Lake D	Fremont	F	-	-	74
33	Burlington Lake D	Campbell	F	-	-	107

All hypereutrophic lakes →Minnesota version →Wisconsin version →Illinois version →Michigan version →Iowa version →Ohio version →Pennsylvania version →New York version →Missouri version →Indiana version →North Dakota version →South Dakota version →Florida version →Colorado version →North Carolina version →Vermont version →Texas version →Oregon version →Arkansas version →Oklahoma version →Kansas version →Nebraska version →Nevada version →Arizona version →Idaho version →Montana version →New Mexico version →Tennessee version →Alabama version →Virginia version →Kentucky version →Utah version →Washington version →All Wyoming lakes →

Source: EPA National Aquatic Resource Surveys, 2026.