Visit Longmont is continually monitoring developments surrounding COVID-19 and is following the lead of local, state and national health and travel authorities. The safety and well being of our community, partners and visitors is our number one priority. We are fully engaged with local and state officials to coordinate a safe return for visitors and meetings. Our hospitality community is working together to implement enhanced procedures to safely welcome you back with our Elevated Standards.

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Union Reservoir


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Union Reservoir is a 736-acre body of water providing recreational opportunities all-year round for visitors and residents alike. 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. You can swim, sunbathe, fish, walk, sail, kayak or stand-up paddle board at Union. The Reservoir is located approximately 7 miles west of I-25 and only 3 miles from Downtown Longmont, making it a central hub for outdoor activities on your next trip to Longmont! There is a daily admission fee to get into Union Reservoir.

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