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12,000-acre reservoir near Glendo. The lake tops out around 127 ft. The depth chart is built from real state fisheries GPS surveys, so the humps, channels and drop-offs you see are measured, not guessed. Below is the species-by-species picture, pulled from the same data the map uses.
The chart traces 47.5 miles of shoreline here. The 3.8 development index tells the story — a convoluted bank whose fishable edge far outruns the acreage. About 8% of the surface sits shallower than 15 ft — that's the weed-and-bait zone. The basin spans about 6.2 mi end to end and 4.9 mi across at its widest. Platte County claims this one. If the bite dies, Guernsey Slough is 21 mi to the southeast.
Spring puts walleye in skinny water — 4 to 15 ft is the zone. As the season builds they drop to 15 to 35 ft, wintering in 20 to 40 ft. Summer walleye concentrate at Offshore hump, a prime-rated offshore hump around 16 ft. Warm-month bites cluster around the evening and early morning. A crawler harness on bottom bouncer or a deep crankbait (trolled) covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 15 ft | dusk & dawn | Main-lake point (11 ft) | 1/8 oz jig + minnow, Hair jig |
| Summer | 15 to 35 ft | dusk & dawn | Offshore hump (16 ft) | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 12 to 40 ft | dusk & night | Secondary point (20 ft) | Jigging rap, Jig + big minnow |
| Winter | 20 to 40 ft | dusk & dawn | Offshore hump (16 ft) | Jigging spoon + minnow head, Rattle bait |
When the water first warms, channel catfish slide up into 3 to 12 ft. By summer they slide out to 8 to 25 ft, and by winter most fish are in 20 to 40 ft. If you only fish one area, make it Back-bay flat: a feeding flat around 11 ft that scores prime in fall. In summer the feeding windows fall in after dark and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dusk | Back-bay flat (11 ft) | |
| Summer | 8 to 25 ft | night & dusk | Back-bay flat (11 ft) | |
| Fall | 10 to 30 ft | dusk | Back-bay flat (11 ft) | |
| Winter | 20 to 40 ft | midday | Deep basin (125 ft) |
Come spring, look for crappie tight to the bank in 2 to 8 ft. Expect a summer slide to 10 to 25 ft, then a winter hold in 15 to 35 ft. Start at Marina / dock area. It's a dock line holding about 4 ft of water and rates prime come spring. Prime time lands in early morning and the evening. A jig trolled/spider-rigged or a small crankbait (trolled) is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Marina / dock area (4 ft) | 1/16 oz jig + tube, Curly-tail grub |
| Summer | 10 to 25 ft | dawn & dusk | Offshore hump (16 ft) | Jig trolled/spider-rigged, Small crankbait (trolled) |
| Fall | 8 to 20 ft | dawn | Back-bay flat (11 ft) | Jig + minnow combo, Small swimbait (1.5-2") |
| Winter | 15 to 35 ft | midday | Offshore hump (16 ft) | Tungsten jig + soft plastic, Tiny jigging spoon |
Start shallow in spring: yellow perch sit in 3 to 12 ft that time of year. Summer pushes them deeper, 10 to 30 ft, and winter fish settle into 15 to 35 ft. The spot to know is Back-bay flat, a feeding flat in about 11 ft of water that rates prime for yellow perch in spring. Warm-month bites cluster around early morning. Throw a drop-shot micro plastics or a small spoon tipped with worm until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Back-bay flat (11 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 10 to 30 ft | dawn | Offshore hump (16 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 12 to 35 ft | midday | Offshore hump (16 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 15 to 35 ft | midday & dawn | Offshore hump (16 ft) | Tungsten jig + spikes, Rattle spoon (small) |
Come spring, look for white bass & hybrids tight to the bank in 3 to 15 ft. Expect a summer slide to 10 to 30 ft, then a winter hold in 20 to 40 ft. Start at Offshore hump. It's an offshore hump holding about 16 ft of water and rates prime come summer. Prime time lands in early morning and the evening. A jigging spoon or a topwater (when schooling) is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 15 ft | midday & dawn | Main-lake point (11 ft) | Rooster tail / inline spinner, Curly-tail jig (white/chartreuse) |
| Summer | 10 to 30 ft | dawn & dusk | Offshore hump (16 ft) | Jigging spoon, Topwater (when schooling) |
| Fall | 8 to 25 ft | midday & dawn | Main-lake point (11 ft) | Small blade bait, Jigging spoon |
| Winter | 20 to 40 ft | midday | Offshore hump (16 ft) | Jigging spoon, Blade bait (vertical) |
The chart marks 15 structure features on Glendo Reservoir; the deepest is Deep basin at about 125 ft.
Access data: OpenStreetMap contributors (ODbL) — community-mapped launches. Confirm conditions and fees locally before you launch.
Season dates, license requirements, and size and bag limits for Wyoming waters are set by the Wyoming Game and Fish Department — and special regulations can apply to Glendo Reservoir specifically, so confirm the current rules before you fish.
Check the official Wyoming fishing regulations →
Glendo Reservoir is about 127 ft (39 m) deep at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.
Anglers target walleye, channel catfish, crappie, yellow perch, white bass & hybrids on Glendo Reservoir.
Offshore hump is the top-rated area: an offshore hump in about 16 ft of water that rates prime for walleye in summer. Scroll up to the map for the complete spot list by species and season.
For walleye, the summer bite is best in the evening and early morning. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Glendo Reservoir is regulated by the Wyoming Game and Fish Department. Check the official Wyoming regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Guernsey Slough 21 mi · Grayrocks Reservoir 28 mi · Festo Lake 30 mi · Rock Lake 37 mi · Springer Res 56 mi · Bump Sullivan Res 57 mi · Wheatland Reservoir 3 58 mi · Big Muddy Pond 58 mi · Walker Jenkins Lake 62 mi · Packers Lake 63 mi · Hawk Springs Reservoir 69 mi · Bryan Stock Trail Pond (Lake Makenzie) 71 mi
See how Glendo Reservoir stacks up: best walleye lakes in Wyoming · best crappie lakes in Wyoming · best channel catfish lakes in Wyoming · best yellow perch lakes in Wyoming
More water nearby: Platte County fishing maps (5 charts). Browse all Wyoming fishing maps or see every water on DepthScout. Bathymetry credit: state fisheries survey programs. How we build these maps. Fish here with a sonar unit that logs? Send us your depth data and we'll improve this chart, credited to you. For fishing guidance only, never navigation.