Whacking Fatties Fly Fishing Reports and Forecasts

Colorado Fishing Report

Best Fishing Stream Name Today 7/8 7/9
1 Taylor River, CO 5 5 5
2 Williams Fork, CO 5 5 5
3 Clear Creek Reservoir, CO 5 5 5
4 Dillon Reservoir, CO 5 5 5
5 Lost Lake Slough, CO 5 5 5
6 Rito Hondo Reservoir, CO 5 5 5
7 Turquoise Lake, CO 5 5 5
8 Clear Lake, CO 5 5 5
9 Shadow Mountain Lake, CO 5 5 5
10 Shaw Lake, CO 5 5 5
11 Cottonwood Lake, CO 5 5 5
12 Dowdy Lake, CO 5 5 5
13 Big Meadows Reservoir, CO 5 5 5
14 Jefferson Lake, CO 5 5 5
15 Ruedi Reservoir, CO 5 5 5
16 Roaring Fork River, CO 5 5 5
17 Yampa River, CO 5 5 5
18 Fraser River, CO 5 5 5
19 Bear River, CO 5 5 5
20 Crystal River, CO 5 5 5
21 Alberta Park Reservoir, CO 5 5 5
22 Chambers Lake, CO 5 5 5
23 La Jara Reservoir, CO 5 5 5
24 Elk River, CO 5 5 5
25 White River, CO 5 5 5
26 Troutvale Reservoir Number 1: Hinsdale, CO 5 5 4
27 Rio Grande Reservoir, CO 5 5 4
28 Tarryall Reservoir, CO 5 5 4
29 Trinidad Lake, CO 5 5 4
30 Williams Creek Reservoir, CO 5 5 4
31 Troutvale Reservoir Number 2, CO 5 5 4
32 Road Canyon Reservoir Number 1, CO 5 5 4
33 East River, CO 5 5 4
34 Skagway Reservoir, CO 5 5 3
35 North Sterling Reservoir, CO 5 5 2
36 Neenoshe Reservoir, CO 5 5 1
37 Vallecito Reservoir, CO 5 4 5
38 Antero Reservoir, CO 5 4 5
39 Halligan Reservoir, CO 5 4 5
40 Grand Lake, CO 5 4 5
41 Lake Granby, CO 5 4 5
42 Sanchez Reservoir, CO 5 4 5
43 Cimarron River, CO 5 4 5
44 Green Mountain Reservoir, CO 5 4 5
45 Douglas Reservoir, CO 5 4 5
46 Upper Stillwater Reservoir, CO 5 4 5
47 North Michigan Creek Reservoir, CO 5 4 5
48 Dumont Lake, CO 5 4 5
49 Lake John, CO 5 4 5
50 Deweese-Dye Reservoir, CO 5 4 4
51 Trujillo Meadows Reservoir, CO 5 4 4
52 Henson Creek, CO 5 4 4
53 Big Blue Creek, CO 5 4 4
54 Cebolla Creek, CO 5 4 4
55 Eagle River, CO 5 4 4
56 South Fork White River, CO 5 4 4
57 Muddy Creek, CO 5 4 4
58 Jackson Reservoir, CO 5 4 3
59 Paonia Reservoir, CO 5 4 3
60 Chatfield Lake, CO 5 3 5
61 Haviland Lake, CO 5 3 5
62 Pinewood Lake, CO 5 3 5
63 Miramonte Reservoir, CO 5 3 5
64 Willow Creek Reservoir, CO 5 3 5
65 Crawford Reservoir, CO 5 3 5
66 Mariano Reservoir, CO 5 3 5
67 Home Supply Reservoir, CO 5 3 5
68 Lon Hagler Reservoir, CO 5 3 5
69 Watson Lake, CO 5 3 5
70 South Delaney Lake, CO 5 3 5
71 Elk Head Reservoir, CO 5 3 5
72 Cowdrey Reservoir, CO 5 3 5
73 Groundhog Reservoir, CO 5 3 5
74 Lemon Reservoir, CO 5 3 5
75 Hot Springs Reservoir, CO 5 3 5
76 Deep Ward Lake, CO 5 3 5
77 East Delaney Lake, CO 5 3 5
78 Steamboat Lake, CO 5 3 5
79 North Delaney Lake, CO 5 3 5
80 Pearl Lake, CO 5 3 5
81 Sweitzer Lake, CO 5 3 4
82 Deep Lake, CO 5 3 4
83 Sweetwater Lake, CO 5 3 4
84 Big Creek Reservoir Number 1, CO 5 3 4
85 Boyd Lake, CO 5 3 4
86 Vega Reservoir, CO 5 3 4
87 Gunnison River: Upper, CO 5 3 4
88 Colorado River: Lower, CO 5 3 4
89 San Luis Lake, CO 5 3 3
90 Buckeye Reservoir, CO 5 3 3
91 Big Beaver Reservoir, CO 5 3 3
92 Brush Hollow Reservoir, CO 5 3 3
93 Cherry Creek Lake, CO 5 3 3
94 Florida River, CO 4 5 4
95 Lake Hasty, CO 4 5 2
96 Julesburg Reservoir, CO 4 5 1
97 Thurston Reservoir, CO 4 5 1
98 Neeskah Reservoir: Kiowa, CO 4 5 1
99 Neeskah Reservoir, CO 4 5 1
100 Two Buttes Reservoir, CO 4 5 1
101 Sylvan Lake, CO 4 4 5
102 Echo Canyon Reservoir, CO 4 4 4
103 Clear Creek, CO 4 4 4
104 Gore Creek, CO 4 4 4
105 Middle Fork South Platte River, CO 4 4 4
106 North Fork South Platte River, CO 4 4 4
107 Clear Creek: Arkansas River, CO 4 4 4
108 Lake Fork of the Gunnison, CO 4 4 4
109 Rio Grande, CO 4 4 4
110 North Fork Big Thompson River, CO 4 4 4
111 South Fork Rio Grande, CO 4 4 4
112 Fall River, CO 4 4 4
113 Roaring River, CO 4 4 4
114 Joe Wright Creek, CO 4 4 4
115 Martin Lake Reservoir, CO 4 4 3
116 Horseshoe Lake Reservoir, CO 4 4 3
117 Grass Valley Reservoir, CO 4 4 3
118 Conejos River, CO 4 4 3
119 Pueblo Reservoir, CO 4 4 3
120 Flagler Reservoir, CO 4 4 1
121 Spinney Mountain Reservoir, CO 4 3 5
122 Pastorius Reservoir, CO 4 3 5
123 Upper Dome Reservoir, CO 4 3 5
124 Hermosa Creek, CO 4 3 5
125 Mesa Lake, CO 4 3 5
126 Elevenmile Canyon Reservoir, CO 4 3 4
127 Island Lake, CO 4 3 4
128 Ramah Reservoir, CO 4 3 4
129 Tarryall Creek, CO 4 3 3
130 Cache la Poudre River, CO 4 3 3
131 Rio Blanco Lake, CO 4 3 3
132 Prewitt Reservoir, CO 4 3 2
133 Uncompahgre River, CO 4 3 1
134 South Platte River: Upper, CO 4 2 4
135 Bear Creek, CO 4 2 4
136 North Platte River, CO 4 2 4
137 Michigan River, CO 4 2 4
138 Saint Vrain Creek, CO 4 2 3
139 Boulder Creek, CO 4 2 3
140 Arkansas River: Upper, CO 4 2 2
141 Colorado River: Upper, CO 4 1 2
142 R R Rutherford Reservoir, CO 3 5 2
143 Holbrook Reservoir, CO 3 5 1
144 Bonny Reservoir, CO 3 5 1
145 Horse Creek Reservoir, CO 3 5 1
146 Mountain Home Reservoir, CO 3 4 4
147 Homestake Creek, CO 3 4 4
148 Smith Reservoir, CO 3 4 3
149 Blue River, CO 3 4 3
150 Elk Creek, CO 3 4 2
151 Adobe Creek Reservoir, CO 3 4 1
152 Lake Hasty: Bent, CO 3 4 1
153 Jackson Gulch Reservoir, CO 3 3 5
154 Joe Moore Reservoir, CO 3 3 4
155 Rifle Gap Reservoir, CO 3 3 4
156 Summit Reservoir, CO 3 3 4
157 Totten Lake, CO 3 3 4
158 Puett Reservoir, CO 3 3 4
159 Narraguinnep Reservoir, CO 3 3 3
160 McPhee Reservoir, CO 3 3 3
161 Highline Lake, CO 3 3 2
162 Barr Lake, CO 3 3 2
163 Los Pinos River, CO 3 2 4
164 San Juan River, CO 3 2 3
165 Gunnison River: Black Canyon, CO 3 2 3
166 Grape Creek, CO 3 2 2
167 South Platte River: Lower, CO 3 2 1
168 John Martin Reservoir, CO 3 2 1
169 Gunnison River: Lower, CO 3 1 1
170 Cochetopa Creek, CO 2 3 4
171 Rio San Antonio, CO 2 3 2
172 Piedra River, CO 2 2 4
173 Culebra Creek, CO 2 2 3
174 Arkansas River: Lower, CO 2 2 2
175 Animas River, CO 2 2 0
176 West Dolores River, CO 2 1 2
177 Fryingpan River, CO 2 1 2
178 San Miguel River, CO 2 1 1
179 Dolores River, CO 1 1 1




What is Whacking Fatties? Fishing reports and forecasts for ~10,000 streams and lakes and rivers across North America and the United Kingdom.

How is the Fatty Factor calculated?

The Fatty Factor is calculated using a fishing success estimation model containing proprietary big data analytics. We consume data from near and real-time sources, satellites, and sensors; compile/compare, against historic datasets, to create the Fatty Factor. Location, season, and analytics improve the rating over time.

How is the Fatty Factor rated?

5 stars is the best while 0 stars is “Not Fatty”.

How to use Whacking Fatties Fishing Reports and Forecasts?

Consult the detailed stream information section of the fishing reports and forecasts for the latest weather temperatures, wind speeds, cloud cover, gauge flows, and insect hatch patterns.

What do trout eat?

Check out the hatch recommendations for each stream in the detailed stream area. Investigate the hatch recommendations if you are interested in what do trout eat.

What kind of fish can I catch?

You tell us? Rainbow trout, brook trout, lake trout, bass, carp, etc. Currently, fresh water species. Salt water fishing? Fly fishing for carp is awesome. Tell us what you are after? Steelhead, grayling, tarpon, bass, bonefish, taimen, permit, salmon fishing?

How do I use the fishing maps?

We have a vast amount of geographic data for each stream. Click on the points to get more information. Green points represent fishing access such as put-ins and take-outs. Purple points represent bridges or stream crossings whereby often Google StreetView is available. Red points represent USGS Stream Gauges. Where available, we have graphs for Predictive Hydrograph 7 days, Water Temperature, Observed Height (ft.) 7 days, Observed Discharge (cfs) 7 days, and Duration Hydrograph. The Duration Hydrograph is a graphical presentation of recent daily streamflow, plotted over the long-term statistics of streamflow for each day of the year.

With the goal of better understanding fly-fishing patterns and predicting location and ferocity of fishable events, Whacking Fatties presents the Fatty Factor: a fly-fishing success estimation model using proprietary big data analytics.

Whacking Fatties promotes responsible fishing via catch and release practice and water resources conservation.

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