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Union Reservoir
Union Reservoir is a 736 acre body of water providing many outdoor recreational activities. Originally called Calkins Lake, the reservoir was carved out during the last glacial age and is one of only a few natural lakes in Colorado. In 1903, the Union Ditch Company began drilling a tunnel to release water into the St Vrain River. According to Colorado water law, that made Union a true reservoir. Today, visitors to Union Reservoir can enjoy fishing, swimming, wakeless boating, camping, windsurfing and picnicking. T
AARP Events for Longmont
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Functional Fitness with Basic Body Movements
Monday, Jan 13, 2025 at 7:00 a.m. MT
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Exercise Class: Virtual Barre Fusion
Monday, Jan 13, 2025 at 10:15 a.m. MT
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A Virtual Exercise Class: Low-Impact Kickboxing
Tuesday, Jan 14, 2025 at 7:00 a.m. MT
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