Union Reservoir Camping Area is located in Longmont, Colorado, and is an ideal spot for camping enthusiasts. The surrounding views of the reservoir and the Rocky Mountains are breathtaking and awe-inspiring. Visitors can enjoy a variety of outdoor activities like fishing, boating, and swimming at the reservoir.

Many nearby tourist attractions are worth exploring, including the Boulder County Fairgrounds, the Boulder Museum of Contemporary Art, and the Longmont Museum and Cultural Center.

The campsite amenities include picnic tables, fire rings, restrooms, and potable water. The camping area has 46 campsites, and reservations can be made up to six months in advance. The designated camping season starts in May and ends in September, and the campground operates on a first-come, first-served basis.

One quirky fact about the Union Reservoir is that it was once named Calkins Lake after an early settler in the area, but the name was changed to Union Reservoir after the Union Ditch Company built a canal to bring water to the lake.

The best time of the year to visit Union Reservoir Camping Area is between June and August, with average temperatures ranging from the 60s to 80s Fahrenheit. However, visitors should note that sudden rainstorms are common during the summer months.