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Water Level StatusLast 14 Days

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Live RadarPast 2h · 30 min nowcast

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About Union Reservoir

Union Reservoir is a 717-acre reservoir in Colorado, completed in 1902, managed by City of Longmont Natural Resources. Live water-level readings are scraped from co-cdss on a regular schedule. The main public launch is Anderson Cove Boat Ramp at 461 County Road 26, Longmont CO 80504. The Union Sailing Club is the active sailing club on the water.

Cameras

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Union Reservoir CamLive lake-surface view from the west shore · operator-hosted (BouldAir/Longmont weather network)

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anchor

Anderson Cove Boat Ramp461 County Road 26, Longmont CO 80504

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Union Reservoir Nature Area (City of Longmont)(303) 651-8404461 County Road 26, Longmont CO 80504

Call

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Union Reservoir Nature AreaCity of Longmont Natural Resources rules & park regulationsUnion Reservoir

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Boating & yacht clubs

sailing

Union Sailing Club8 one-design fleets · weekly racing + 5 named 2026 regattas including Rocky Mountain Snipe Championship

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