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7-acre lake near Gilpin County. The lake tops out around 58 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. Species by species, here's what the data says the year looks like.
On the chart, Crater Lake #1, Upper draws 9 acres inside 0.5 miles of shoreline. The basin is a simple one (shoreline index 1.1) — close to a bowl, so the structure on the chart matters more than the bank. 13% of the surface is littoral (under ~15 ft), per the model — cover, weeds and forage water. The water lies in Gilpin County. Closest neighbour on DepthScout: Bob Lake, 4 mi north of here.
Come spring, look for cutthroat trout tight to the bank in 3 to 15 ft. They move out to 10 to 35 ft in summer and finish the year down in 10 to 40 ft. If you only fish one area, make it Shoreline break: a drop-off around 26 ft that scores prime in summer. Best bite is early morning and the evening. A trolled spoon (small) or an inline spinner is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 15 ft | dawn & dusk | open water | Inline spinner (silver/gold), Small spoon |
| Summer | 10 to 35 ft | dawn & dusk | Shoreline break (26 ft) | Trolled spoon (small), Inline spinner |
| Fall | 5 to 25 ft | dawn & dusk | Shoreline break (26 ft) | Casting spoon, Inline spinner |
| Winter | 10 to 40 ft | dawn | Shoreline break (26 ft) | Small jigging spoon, Marabou jig |
Crater Lake #1, Upper carries 3 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 49 ft down.
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 Crater Lake #1, Upper specifically, so confirm the current rules before you fish.
Check the official Colorado fishing regulations →
Crater Lake #1, Upper is about 58 ft (18 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 cutthroat trout on Crater Lake #1, Upper.
Shoreline break is the top-rated area: a drop-off in about 26 ft of water that rates prime for cutthroat trout in summer. The map above holds the full rated-spot list for every species and season.
For cutthroat trout, 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 Crater Lake #1, Upper 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.
Bob Lake 4 mi · Woodland Lake 4 mi · Diamond Lake Upper 6 mi · Barker Reservoir 11 mi · Meadow Creek Reservoir 11 mi · Monarch Lake 15 mi · Gross Reservoir 17 mi · Granby Reservoir 19 mi · Chicago Lake Lower 20 mi · Murray Lake 21 mi · Willow Creek Reservoir 23 mi · Shadow Mountain Reservoir 24 mi
See how Crater Lake #1, Upper stacks up: best cutthroat trout lakes in Colorado
Browse all Colorado fishing maps or 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.