The lake bed in 3-D: deep basin, drop-offs and shoreline. Shape estimated, not for navigation. Spot 1 (point drop-off) is open for everyone; the other 6 come with LakeScope PRO. Full screen
Lower Crystal Springs Reservoir
San Mateo County, California · about 910 acres (1.4 sq mi)
Level 273 ft, windy Friday (25 mph WSW).
About Lower Crystal Springs Reservoir
Lower Crystal Springs Reservoir spreads over about 910 acres in San Mateo County, California.
From end to end it runs about 4.9 miles and its shoreline adds up to about 13.7 miles. Its surface is about 280 ft above sea level. Highlands-Baywood Park sits right on the water. San Mateo, the nearest city, is about 3 miles northeast.
- Size
- About 910 acres (1.4 sq mi)
- Shoreline
- About 13.7 miles
- End to end
- About 4.9 miles
- Elevation
- About 280 ft
- County
- San Mateo County
The lake from above
Best fishing times
Saturday Good
- 6:15 am – 8:30 amsunrise · wind 3 mph
- 3:15 pm – 5:30 pm bestsunset, moon overhead · wind 3 mph
Sunday Slow
Based on sun and moon times and the wind forecast. A guide, not a promise. The app shows the whole week.
Fish to expect
For a lake of this size in California, largemouth bass, crappie, bluegill and sunfish and catfish are the fish to expect. The state fish and wildlife agency lists what is stocked and the rules for this lake.
- Largemouth bass
- Crappie
- Bluegill and sunfish
- Catfish
Fishing spots
- 1Point drop-off
The bottom falls away fast off this point; fish rest deep and move up the slope to feed.
- 2
- 3
- 4
- 5
- 6
- 7
6 more spots with LakeScope PRO: fish, depth band, water temperature, best time and bait for each.
Picked from the shape of the lake bed. A guide, not a promise.
Water temperature
No clear reading right now. Narrow or small lakes often have none; the weather and bite times below still apply.
Water level
7-day trend: not enough daily readings yet.
Latest reading .
Ice
No clear view of the ice yet
Ice thickness is an estimate from air temperature, not a measurement. Check the ice yourself before going on it.
Weather and wind
Sunrise 6:47 am · sunset 4:59 pm · waxing crescent moon (lake time).
Towns and places to stay near Lower Crystal Springs Reservoir
- Highlands-Baywood Parkon the shore
- Hillsboroughabout 1.4 mi north
- Burlingameabout 2.4 mi north
- Millbraeabout 3 mi north
- San Mateonearest city, about 3 mi northeast
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Questions about Lower Crystal Springs Reservoir
What fish are in Lower Crystal Springs Reservoir?
Lakes like Lower Crystal Springs Reservoir usually hold largemouth bass, crappie, bluegill and sunfish and catfish. Check the state fish and wildlife agency for stocking and limits.
How deep is Lower Crystal Springs Reservoir?
We have no published depth for this lake. The 3-D view gives an estimated shape of the bed: where the deep basin and the drop-offs are. Not for navigation.
How big is Lower Crystal Springs Reservoir?
About 910 acres, with about 13.7 miles of shoreline.
What town is near Lower Crystal Springs Reservoir?
Highlands-Baywood Park is on the shore; Hillsborough is about 1.4 miles north.
Is the water warm enough to swim in Lower Crystal Springs Reservoir?
Check the water temperature on this page before you go: under 70°F feels cold to most swimmers, and under 60°F cold-water shock is a real risk.
Lower Crystal Springs Reservoir on your phone
The whole week of bite times, lake alerts and the 3-D view, every morning.
