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3,380-acre river near Maastricht. The river tops out around 30 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. Species by species, here's what the data says the year looks like.
The drawn outline gives you 17.8 miles of bank to pick apart. With a shoreline index of 3.2, this water is all arms and coves — edge habitat well beyond its acreage. The shallow band under 15 ft claims about 64% of the surface — that's where the groceries are. Tip to tip the water measures near 7.9 mi with a 1.2-mi widest point. The nearest mapped water is Grensmaas, 14 mi to the north.
Vis- en dieptekaart van Bovenmaas, Nederland: gemeten dieptelijnen (Rijkswaterstaat) tot 9 m, met visstekken voor baars, snoekbaars, snoek. De dieptelijnen zijn berekend uit gemeten bodemhoogten van Rijkswaterstaat en het officiële lokale streefpeil (NAP). Gebruik de kaart als visgids, nooit voor navigatie.
Start shallow in spring: european perch sit in 3 to 12 ft that time of year. Summer pushes them deeper, 8 to 28 ft, and winter fish settle into 9 to 30 ft. The spot to know is Measured shallow feeding flat, a feeding flat in about 8 ft of water that rates prime for european perch in spring. Warm-month bites cluster around early morning. Throw a drop-shot micro plastics or a small crankbait (perch pattern) until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Measured shallow feeding flat (8 ft) | Small jig + curly tail, Inline spinner #1-2 |
| Summer | 8 to 28 ft | dawn | Measured shallow feeding flat (8 ft) | Drop-shot micro plastics, Small crankbait (perch pattern) |
| Fall | 9 to 30 ft | midday | open water | Jigging spoon (small), Drop-shot on deep flats |
| Winter | 9 to 30 ft | midday & dawn | Measured shallow feeding flat (8 ft) | Tungsten jig + maggots, Small balance jig |
Start shallow in spring: zander sit in 4 to 15 ft that time of year. Summer pushes them deeper, 9 to 30 ft, and winter fish settle into 9 to 30 ft. The spot to know is Measured shallow feeding flat, a feeding flat in about 8 ft of water that rates good for zander in summer. Warm-month bites cluster around the evening and early morning. Throw a vertical softbait over humps or a deep crankbait until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 15 ft | dusk & dawn | open water | Softbait on jighead (10-12 cm), Shallow crankbait at dusk |
| Summer | 9 to 30 ft | dusk & dawn | Measured shallow feeding flat (8 ft) | Vertical softbait over humps, Deep crankbait |
| Fall | 9 to 30 ft | dusk & night | open water | Big softbait (12-16 cm) slow-rolled, Jigging spoon |
| Winter | 9 to 30 ft | dusk & dawn | open water | Vertical jig / mormyshka with bait, Slow blade bait |
The spring pattern is a shallow one: northern pike in 2 to 8 ft. Midsummer fish sit out in 8 to 20 ft before dropping to 5 to 15 ft for winter. The spot to know is Measured shallow feeding flat, a feeding flat in about 8 ft of water that rates prime for northern pike in spring. Plan around early morning and the evening in the warm months. Summer baits: a bucktail or a weedless spoon over cabbage gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Measured shallow feeding flat (8 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 8 to 20 ft | dawn & dusk | Measured shallow feeding flat (8 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Measured shallow feeding flat (8 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Measured shallow feeding flat (8 ft) | Tip-ups, Large jigging spoon |
In spring, common carp run shallow here, mostly 2 to 10 ft. Summer pushes them deeper, 3 to 15 ft, and winter fish settle into 10 to 30 ft. Measured shallow feeding flat is the standout, a feeding flat at roughly 8 ft, rated prime for spring common carp. Time it for early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | midday & dawn | Measured shallow feeding flat (8 ft) | |
| Summer | 3 to 15 ft | dawn & dusk | Measured shallow feeding flat (8 ft) | |
| Fall | 5 to 18 ft | midday | Measured shallow feeding flat (8 ft) | |
| Winter | 10 to 30 ft | midday | open water |
Count 3 structure marks on this chart. The deepest, Measured deep channel, sits near 30 ft.
Season dates, license requirements, and size and bag limits for Netherlands waters are set by the Sportvisserij Nederland (VISpas & VISplanner) — and special regulations can apply to Bovenmaas specifically, so confirm the current rules before you fish.
Check the official Netherlands fishing regulations →
Bovenmaas is about 30 ft (9 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 european perch, zander, northern pike, common carp on Bovenmaas. This isn't a survey of the water — none is published for it — but an informed estimate from the species common to the region, narrowed by this water's depth, size and each species' range.
Measured shallow feeding flat is the top-rated area: a feeding flat in about 8 ft of water that rates prime for european perch in spring. The map above holds the full rated-spot list for every species and season.
For european perch, the summer bite is best in 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 Bovenmaas is regulated by the Sportvisserij Nederland (VISpas & VISplanner). Check the official Netherlands regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Grensmaas 14 mi · Julianakanaal 15 mi · Midden Limburgse en Noord-Brabantse kanalen 37 mi · Zandmaas 47 mi · Bedijkte Maas 67 mi · Maas-Waalkanaal 69 mi · Beneden Maas 70 mi · Bergsche Maas 70 mi · Bovenrijn, Waal 72 mi · Antwerps kanaalpand 75 mi · Brabantse Biesbosch 76 mi · Bathse Spuikanaal 77 mi
See how Bovenmaas stacks up: best zander lakes in Netherlands · best northern pike lakes in Netherlands · best european perch lakes in Netherlands · best common carp lakes in Netherlands
Browse all Netherlands fishing maps or see every water on DepthScout. Bathymetry credit: Rijkswaterstaat measured bed elevations and official target water levels, CC0. 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.