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Rating depth structure for largemouth bass.
Recent public catches load as you reach this section.
28-acre lake near Denver County. The lake tops out around 25 ft. The depth picture is modeled, anchored to the true shoreline and the water's published max depth — a scouting aid, never a chart to run a boat by. Below is the species-by-species picture, pulled from the same data the map uses.
Traced from the shoreline, Rocky Mtn Lake runs 23 acres with 0.9 miles of edge. Its 1.3 shoreline index means few bank features; the contours below do the pattern work. The shallow band under 15 ft claims about 40% of the surface on the model — that's where the groceries are. Figure 0.4 mi of water from one end to the other, 0.2 mi at the beam. The water lies in Denver County. For a second option, Berkeley Lake lies 1 mi west.
In spring, largemouth bass run shallow here, mostly 2 to 10 ft. Summer pushes them deeper, 8 to 20 ft, and winter fish settle into 8 to 25 ft. Main-lake point is the standout, a point at roughly 8 ft, rated prime for fall largemouth bass. Time it for early morning and the evening. You won't need more than a texas-rigged 10" worm or a deep-diving crankbait most summer days.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | dawn & dusk | Main-lake point (8 ft) | Spinnerbait, Chatterbait |
| Summer | 8 to 20 ft | dawn & dusk | Break off the point (11 ft) | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Main-lake point (8 ft) | Squarebill crankbait (shad), Spinnerbait |
| Winter | 8 to 25 ft chart-limited; documented 15 to 35 ft | midday | Break off the point (11 ft) | Blade bait, Jigging spoon |
The spring pattern is a shallow one: common carp in 2 to 10 ft. Midsummer fish sit out in 3 to 15 ft before dropping to 8 to 25 ft for winter. The spot to know is Deep basin, a deep basin in about 21 ft of water that rates prime for common carp in winter. Plan around early morning and the evening in the warm months.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | midday & dawn | open water | |
| Summer | 3 to 15 ft | dawn & dusk | open water | |
| Fall | 5 to 18 ft | midday | Deep basin (21 ft) | |
| Winter | 8 to 25 ft chart-limited; documented 10 to 30 ft | midday | Deep basin (21 ft) |
In spring, channel catfish run shallow here, mostly 3 to 12 ft. Summer pushes them deeper, 8 to 25 ft, and winter fish settle into 8 to 25 ft. Deep basin is the standout, a deep basin at roughly 21 ft, rated prime for winter channel catfish. Time it for after dark and the evening.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dusk | open water | |
| Summer | 8 to 25 ft | night & dusk | Deep basin (21 ft) | |
| Fall | 8 to 25 ft chart-limited; documented 10 to 30 ft | dusk | Deep basin (21 ft) | |
| Winter | 8 to 25 ft chart-limited; documented 20 to 40 ft | midday | Deep basin (21 ft) |
Spring puts crappie in skinny water — 2 to 8 ft is the zone. As the season builds they drop to 10 to 25 ft, wintering in 8 to 25 ft. Winter crappie concentrate at Deep basin, a prime-rated deep basin around 21 ft. Warm-month bites cluster around early morning and the evening. A jig trolled/spider-rigged or a small crankbait (trolled) covers the summer program.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | open water | 1/16 oz jig + tube, Curly-tail grub |
| Summer | 10 to 25 ft | dawn & dusk | Break off the point (11 ft) | Jig trolled/spider-rigged, Small crankbait (trolled) |
| Fall | 8 to 20 ft | dawn | Break off the point (11 ft) | Jig + minnow combo, Small swimbait (1.5-2") |
| Winter | 8 to 25 ft chart-limited; documented 15 to 35 ft | midday | Deep basin (21 ft) | Tungsten jig + soft plastic, Tiny jigging spoon |
The spring pattern is a shallow one: bluegill in 1 to 6 ft. As the season builds they drop to 4 to 15 ft, wintering in 10 to 25 ft. Top water on the chart: Deep basin, a deep basin in the 21 ft range, prime in winter. Time it for early morning and the evening. Summer baits: a small sponge spider (fly) or a micro tube jig gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 6 ft | midday & dusk | open water | 1/32 oz jig + micro plastic, Tiny popper (evenings) |
| Summer | 4 to 15 ft | dawn & dusk | open water | Small sponge spider (fly), Micro tube jig |
| Fall | 6 to 18 ft | midday | Break off the point (11 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 10 to 25 ft | midday | Deep basin (21 ft) | Tungsten ice jig + plastic, Tiny spoon |
When the water first warms, pumpkinseed slide up into 1 to 8 ft. By summer they slide out to 2 to 10 ft, and by winter most fish are in 6 to 18 ft. If you only fish one area, make it Deep basin: a deep basin around 21 ft that scores good in winter. In summer the feeding windows fall in the evening and early morning. Keep a micro tube or a sponge spider (fly) rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 8 ft | midday & dusk | open water | Micro jig under a float, Tiny beetle-spin |
| Summer | 2 to 10 ft | dusk & dawn | open water | Micro tube, Sponge spider (fly) |
| Fall | 4 to 14 ft | dusk & dawn | Break off the point (11 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 6 to 18 ft | dawn | Deep basin (21 ft) | Tungsten ice jig + plastic, Tiny spoon |
Rocky Mtn Lake also holds rainbow trout (7 to 25 ft in summer), green sunfish (2 to 12 ft in summer). Pick any of them on the map above for rated spots and bait picks.
Structure-wise the chart holds 3 features, led in depth by Deep basin at roughly 21 ft.
Season dates, license requirements, and size and bag limits for Colorado waters are set by the Colorado Parks & Wildlife — and special regulations can apply to Rocky Mtn Lake specifically, so confirm the current rules before you fish.
Check the official Colorado fishing regulations →
Rocky Mtn Lake is about 25 ft (8 m) deep at its deepest point. The contours here are modeled from the water's real shape and maximum depth, so treat them as a rough guide.
Anglers target largemouth bass, common carp, channel catfish, crappie, bluegill, pumpkinseed, rainbow trout, green sunfish on Rocky Mtn Lake.
Main-lake point is the top-rated area: a point in about 8 ft of water that rates prime for largemouth bass in fall. Open the map above to see every rated spot for each species and season.
For largemouth bass, the summer bite is best in early morning and the evening. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Rocky Mtn Lake is regulated by the Colorado Parks & Wildlife. Check the official Colorado regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Berkeley Lake 1 mi · Jim Baker Reservoir 2 mi · Standley Lake 8 mi · Arvada Reservoir 10 mi · Hunters Glen Lake 11 mi · Waneka Lake 15 mi · Chatfield Reservoir 17 mi · Gross Reservoir 21 mi · Boulder City Reservoir 23 mi · Milavec Reservoir 24 mi · Strontia Springs Res 25 mi · Barker Reservoir 28 mi
See how Rocky Mtn Lake stacks up: best largemouth bass lakes in Colorado · best crappie lakes in Colorado · best bluegill lakes in Colorado · best channel catfish lakes in Colorado
Browse all Colorado fishing maps. See every water on DepthScout. 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.