UNION RESERVOIR

Amenities Weather Recreation


CAMPING COLORADO

Union Reservoir


April 14, 2024

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.




Weather Outlook



16 Day Long Term Forecast

Seasonal Comparison


Historical Data


Fishing Destinations

                                                       

Stearns Lake

Apache Trout Blue Catfish Bluegill Channel Catfish Kelp Bass Largemouth Bass Rainbow Trout

Community College Pond

Apache Trout Bluegill Kelp Bass Largemouth Bass Rainbow Trout

Dixon Reservoir

Apache Trout Bluegill Brown Trout Kelp Bass Largemouth Bass Rainbow Trout

Bear Creek Ponds

Apache Trout Brown Trout Cutthroat Trout Rainbow Trout

Eastman Park

Apache Trout Blue Catfish Green Sunfish Kelp Bass

Heinricy Lake

Apache Trout Atlantic Salmon Brown Trout Rainbow Trout

Spratt-Platte Lake

Apache Trout Brown Trout Cutthroat Trout Rainbow Trout

Huston Park Lake

Apache Trout Atlantic Salmon Cutthroat Trout

North Shields Ponds

Black Bullhead Black Crappie Bluegill

Upper Tule Lake

Bluefin Tuna

Golden Ponds

Apache Trout Blue Catfish Bluegill Kelp Bass Largemouth Bass Rainbow Trout

Loveland Service Center Pond

Apache Trout Bluegill Kelp Bass Largemouth Bass Rainbow Trout

Redstone Park Pond

Apache Trout Black Sea Bass Brook Trout Brown Trout Rainbow Trout

Waneka Lake

Apache Trout Blue Catfish Bluegill Kelp Bass Largemouth Bass Rainbow Trout

Pinewood Reservoir

Apache Trout Atlantic Salmon Brown Trout Cutthroat Trout Rainbow Trout

Prospect Ponds (FC)

Apache Trout Blue Catfish Bluegill Kelp Bass

Cattail Pond at Boulder County Fairgrounds

Black Crappie Bluegill Kelp Bass

Cottonwood Lake (Pearl Parkway Boulder)

Apache Trout Brown Trout Cutthroat Trout Rainbow Trout

Soda Lakes

Apache Trout Blue Catfish Bluegill Kelp Bass Largemouth Bass Rainbow Trout

Carter Lake

Apache Trout Kelp Bass Smallmouth Bass Walleye

Walden Ponds - Bass Pond

Blue Catfish Bluegill Kelp Bass Largemouth Bass

McCall Lake

Apache Trout Brown Trout Cutthroat Trout Rainbow Trout

Main Reservoir

Apache Trout Atlantic Salmon Brown Trout Rainbow Trout

Blue Heron Lake

Apache Trout Black Crappie Blue Catfish Bluegill Brown Trout Channel Catfish Kelp Bass Largemouth Bass Rainbow Trout

Kendrick Reservoir

Apache Trout Brown Trout Rainbow Trout Wiper

Roberts Lake

Apache Trout Atlantic Salmon Brown Trout Rainbow Trout

North Lake Park Pond

Apache Trout Bluegill Kelp Bass Largemouth Bass Rainbow Trout

Birdland Lake (Jack B. Tomlinson Park)

Almaco Jack Apache Trout Blue Catfish Kelp Bass

McIntosh Lake

Blue Catfish Bluegill Channel Catfish Kelp Bass Largemouth Bass Northern Pike

Kingfisher Point Ponds

Apache Trout Blue Catfish Brown Trout Channel Catfish Kelp Bass Rainbow Trout

Thornton Rec Ctr Lake (Carpenter)

Apache Trout Blue Catfish Bluegill Channel Catfish Common Carp Kelp Bass Largemouth Bass Rainbow Trout

Izaak Walton Pond

Apache Trout Bluegill Kelp Bass

Lon Hagler Reservoir

Apache Trout Brown Trout Kelp Bass Largemouth Bass Rainbow Trout Walleye White Perch Yellow Perch

Centennial Park

Apache Trout Blue Catfish Green Sunfish Kelp Bass

Sawhill Ponds #2

Apache Trout Blue Catfish Bluegill Channel Catfish Kelp Bass Largemouth Bass Rainbow Trout

Sawhill Ponds #10

Bluegill Common Carp Kelp Bass

Lambertson Lake

Apache Trout Brown Trout Cutthroat Trout Rainbow Trout

Sawhill Ponds #3

Apache Trout Blue Catfish Bluegill Kelp Bass Largemouth Bass Rainbow Trout

Gallup Reservoir

Apache Trout Atlantic Salmon Brown Trout Rainbow Trout

Strortia Springs Reservoir

Apache Trout Brown Trout Kelp Bass Rainbow Trout Smallmouth Bass White Perch Yellow Perch

Berkeley Lake

Apache Trout Brown Trout Kelp Bass Largemouth Bass Rainbow Trout

Harper Lake

Apache Trout Bluegill Brown Trout Kelp Bass Largemouth Bass Rainbow Trout

Ehrlich Lake

Apache Trout Brown Trout

Twin Lakes Park Ponds

Apache Trout Blue Catfish Kelp Bass

Windsor Lake

Apache Trout Blue Catfish Bluegill Kelp Bass Largemouth Bass Rainbow Trout

Rotella Park Pond

Apache Trout Black Sea Bass Bluegill Largemouth Bass Rainbow Trout

Jim Baker Reservoir

Apache Trout Brown Trout

Chatfield Reservoir

Apache Trout Blue Catfish Kelp Bass Rainbow Trout Smallmouth Bass Walleye

Overland Park Pond

Apache Trout Blue Catfish Bluegill Channel Catfish Rainbow Trout

Pomona Lake

Black Crappie Blue Catfish Bluegill Kelp Bass Largemouth Bass

Boulder Ponds

Apache Trout Brown Trout Kelp Bass Largemouth Bass Rainbow Trout

McMurry Ponds

Apache Trout Brown Trout Kelp Bass Largemouth Bass Rainbow Trout

Brighton City Park Lake

Apache Trout Blue Catfish Bluegill Kelp Bass

Camenisch Park Pond

Apache Trout Blue Catfish Bluegill Kelp Bass

Big Thompson Ponds

Apache Trout Blue Catfish Brown Trout Channel Catfish Rainbow Trout

Riverbend Ponds

Apache Trout Blue Catfish Bluegill Kelp Bass Rainbow Trout

Platte Canyon Ditch

Apache Trout Brown Trout

Rogers Grove - Fairgrounds Lake

Apache Trout Blue Catfish Bluegill Kelp Bass

Salisbury Park

Apache Trout Atlantic Salmon Blue Catfish Brown Trout Rainbow Trout

Viele Lake

Apache Trout Brown Trout Cutthroat Trout Rainbow Trout

Spring Park (Fort Collins)

Apache Trout Bluegill Brown Trout Kelp Bass Permit Rainbow Trout

Harriman Lake

Apache Trout Blue Catfish Bluegill Channel Catfish Kelp Bass Largemouth Bass Rainbow Trout Wiper

Boyd Lake

Apache Trout Kelp Bass Walleye

Smith Lake - Washington Park

Bluegill Common Carp Green Sunfish

Louisville (Warembourg) Fishing Pond

Apache Trout Blue Catfish Kelp Bass

Sloans Lake

Apache Trout Blue Catfish Channel Catfish Kelp Bass Largemouth Bass Rainbow Trout

Coot Lake

Apache Trout Black Crappie Blue Catfish Bluegill Kelp Bass Largemouth Bass Rainbow Trout

Teller Lake No. 3

Blue Catfish Bluegill Kelp Bass

Troutman Park (Fort Collins)

Apache Trout Brown Trout Kelp Bass Largemouth Bass Rainbow Trout

Rolland Moore Park Pond (Fort Collins)

Apache Trout Bluegill Kelp Bass Largemouth Bass Rainbow Trout

Barr Lake

Apache Trout Blue Catfish Bluegill Kelp Bass

Pella Crossing

Apache Trout Blue Catfish Bluegill Channel Catfish Kelp Bass Largemouth Bass Rainbow Trout

Promontory Point Park Ponds

Apache Trout Bluegill Kelp Bass

St. Vrain State Park (Barbour Ponds)

Apache Trout Blue Catfish Bluegill Kelp Bass Largemouth Bass

Crown Hill Lake

Apache Trout Blue Catfish Bluegill Kelp Bass

Watson Lake

Apache Trout Brown Trout

Sawhill Ponds #4

Blue Catfish Bluegill Kelp Bass

Ketring Lake

Apache Trout Blue Catfish

Standley Lake

Apache Trout Black Crappie Blue Catfish Kelp Bass Walleye

Gateway Pond

Apache Trout Blue Catfish Brown Trout Green Sunfish Kelp Bass Largemouth Bass Rainbow Trout

Pomona Lake Number 2

Apache Trout Black Sea Bass Bluegill Brown Trout Largemouth Bass Rainbow Trout Smallmouth Bass

McKay Lake

Apache Trout Blue Catfish Bluegill Channel Catfish Kelp Bass Largemouth Bass Rainbow Trout

Johnstown Reservoir

Apache Trout Blue Catfish Kelp Bass Largemouth Bass Rainbow Trout Walleye

Johnson Reservoir

Black Crappie Blue Catfish Bluegill Channel Catfish Kelp Bass Largemouth Bass

Prospect Park Lakes (Wheatridge)

Apache Trout Blue Catfish Bluegill Kelp Bass Largemouth Bass Rainbow Trout

Lake Arbor

Apache Trout Blue Catfish Bluegill Channel Catfish Rainbow Trout

Avery Pond

Apache Trout Black Crappie Bluegill Brown Trout Kelp Bass Largemouth Bass Rainbow Trout

Flatiron Reservoir

Apache Trout Blue Catfish Bluegill Brown Trout Channel Catfish Kelp Bass Largemouth Bass Rainbow Trout

Clear Creek Pond

Apache Trout Brook Trout Brown Trout Rainbow Trout

Meadow Park Lake

Apache Trout Brown Trout Cutthroat Trout Rainbow Trout

Lagerman Reservoir

Apache Trout Brown Trout Kelp Bass Rainbow Trout

Vanderbilt Lake

Apache Trout Brook Trout Cutthroat Trout Rainbow Trout

Monument Lake (El Paso County)

Apache Trout Brook Trout Brown Trout Cutthroat Trout Rainbow Trout

Sawhill Ponds #1

Apache Trout Black Crappie Blue Catfish Bluegill Channel Catfish Kelp Bass Largemouth Bass Rainbow Trout

South Platte River

Apache Trout Cutthroat Trout

Timnath Reservoir

Black Crappie Blue Catfish Bluegill Kelp Bass

Lowell Ponds

Apache Trout Bluegill Kelp Bass Largemouth Bass Rainbow Trout

English Ranch Park

Apache Trout Blue Catfish Kelp Bass

Smith Lake (Lar. Cty.) (Boxelder #3)

Apache Trout Brown Trout Cutthroat Trout Rainbow Trout

Upper Reservoir - Palmer Lake

Apache Trout Cutthroat Trout

Erie Lake

Black Crappie Blue Catfish Bluegill Kelp Bass Largemouth Bass

Croke Reservoir

Apache Trout Brown Trout Kelp Bass Largemouth Bass Rainbow Trout Walleye

Warren Park Pond

Apache Trout Blue Catfish Kelp Bass Rainbow Trout

Exposition Park Pond

Apache Trout Brook Trout Brown Trout Cutthroat Trout Rainbow Trout

Portner Reservoir (Fossil Creek)

Apache Trout Brook Trout Brown Trout Rainbow Trout

South Saint Vrain Fishing Site #2

Apache Trout Brook Trout Brown Trout Rainbow Trout

Elaine T. Valente Open Space

Apache Trout Blue Catfish Bluegill Common Carp Kelp Bass Rainbow Trout

Loomiller Park Pond

Apache Trout Blue Catfish Bluegill Channel Catfish Kelp Bass Largemouth Bass Rainbow Trout

Teller Lake No. 5

Apache Trout Blue Catfish Bluegill Channel Catfish Kelp Bass Largemouth Bass Rainbow Trout

Bowles Grove Pond

Apache Trout Blue Catfish Bluegill Kelp Bass Largemouth Bass Rainbow Trout

Union Square Ponds

Apache Trout Bluegill Brown Trout Kelp Bass Largemouth Bass Rainbow Trout

Palmer Lake

Apache Trout Brown Trout Northern Pike Rainbow Trout

Rocky Mountain Lake

Apache Trout Atlantic Salmon Brook Trout Brown Trout Rainbow Trout

Thomas Reservoir

Apache Trout Blue Catfish Bluegill Kelp Bass

Little`s Creek Pond

Apache Trout Rainbow Trout

Ward Road Pond

Apache Trout Bluegill Brown Trout Rainbow Trout

Ft. Collins City Park

Apache Trout Blue Catfish Bluegill Rainbow Trout

Progress Park Pond

Apache Trout Blue Catfish Bluegill Kelp Bass Largemouth Bass Rainbow Trout

Grasmere Lake

Apache Trout Brown Trout

Garfield Lake

Alligator Gar Black Crappie Blue Catfish Bluegill Kelp Bass Largemouth Bass

Sawhill Ponds

Apache Trout Black Crappie Blue Catfish Bluegill Kelp Bass Largemouth Bass

Arapaho Bend Ponds (FC)

Apache Trout Blue Catfish Bluegill Kelp Bass

Tom Frost Reservoir

Apache Trout Atlantic Salmon Brown Trout Rainbow Trout

KOA Lake

Apache Trout Bluefin Tuna Lake Trout

Sawhill Ponds #8

Blue Catfish Bluegill Common Carp Kelp Bass

Upper North Crow Reservoir

Apache Trout Brown Trout Cutthroat Trout Rainbow Trout

Sheldon Lake (City Park)

Apache Trout Bluegill Kelp Bass Largemouth Bass Rainbow Trout

Marshall Reservoir

American Shad Apache Trout Cutthroat Trout

Strontia Springs Reservoir

Apache Trout Kelp Bass

Sterne Pond (Kids only)

Apache Trout Bluegill Kelp Bass Largemouth Bass Rainbow Trout

Engineers Lake

Apache Trout Blue Catfish Kelp Bass

Thunderbird Lake

Apache Trout Brook Trout Brown Trout Rainbow Trout

Eaglewatch Lake

Apache Trout Brown Trout Cutthroat Trout Rainbow Trout

Adams County Fairground Lakes

Apache Trout Blue Catfish Bluegill Kelp Bass Largemouth Bass Rainbow Trout

East Reservoir

Apache Trout Atlantic Salmon Brown Trout

Mead Ponds

Apache Trout Blue Catfish Bluegill Brown Trout Cutthroat Trout Kelp Bass Rainbow Trout

Webster Lake

Black Crappie Bluegill Channel Catfish

Walden Ponds - Ricky Weiser Wetland

Blue Catfish Bluegill Channel Catfish Kelp Bass Largemouth Bass

Watson Lake (Littleton)

Apache Trout Blue Catfish Brown Trout Kelp Bass Smallmouth Bass Walleye

Walden Ponds - Duck Pond

Apache Trout Bluegill Kelp Bass Largemouth Bass Rainbow Trout

Greenbriar Park Lake

Apache Trout Blue Catfish Bluegill Channel Catfish Kelp Bass Largemouth Bass Northern Pike Rainbow Trout

Garland Park Lake (Lollipop Lake)

Alligator Gar Apache Trout Brown Trout Cutthroat Trout Rainbow Trout

Lower North Crow Reservoir

Apache Trout Brown Trout

Cottonwood Park Lake (Kipling & Jewell)

Apache Trout Blue Catfish Bluegill Kelp Bass Rainbow Trout

Seaman Reservoir

Apache Trout Black Sea Bass Brown Trout Rainbow Trout White Perch Yellow Perch

Cherry Knolls Pond

Apache Trout Blue Catfish Bluegill Channel Catfish Kelp Bass Largemouth Bass Rainbow Trout

Sawhill Ponds #5

Blue Catfish Bluegill Common Carp Kelp Bass

Manitou Lake

Apache Trout Brown Trout Cutthroat Trout Rainbow Trout

Ketner Lake

Apache Trout Blue Catfish Kelp Bass

Quincy Reservoir

Apache Trout Black Sea Bass Blue Catfish Bluegill Largemouth Bass Rainbow Trout

Westfield Park

Apache Trout Brook Trout Brown Trout Cutthroat Trout Rainbow Trout

Ken Mitchell Park Pond

Apache Trout Atlantic Salmon Brown Trout Cutthroat Trout Rainbow Trout

Barnum Park Lake

Apache Trout Blue Catfish Bluegill Channel Catfish Rainbow Trout

Stew Case Park Pond

Apache Trout Brown Trout Kelp Bass Largemouth Bass Rainbow Trout

Sloan Lake

Blue Catfish Common Carp Kelp Bass Walleye

Talbott Irrigation Reservoir

Apache Trout Brown Trout Kelp Bass Largemouth Bass Rainbow Trout

Carl Park Pond

Apache Trout Atlantic Salmon Blue Catfish Bluegill Kelp Bass Largemouth Bass Rainbow Trout

Maxwell Lake

Apache Trout

Chatfield Lake

Apache Trout Blue Catfish Channel Catfish Kelp Bass Rainbow Trout Smallmouth Bass Walleye

Hine Lake

Apache Trout Brown Trout Rainbow Trout White Perch Yellow Perch

River`s Edge and Jayhawker Ponds

Apache Trout Bluegill Brown Trout Kelp Bass Largemouth Bass

Walden Ponds

Apache Trout Blue Catfish Bluegill Channel Catfish Kelp Bass Largemouth Bass Rainbow Trout

Faversham Park Pond

Bluefin Tuna

Balsam Park Pond

Apache Trout Rainbow Trout

Grandview Ponds

Apache Trout Blue Catfish Bluegill Kelp Bass

Miramont Park (Ft. Collins)

Apache Trout Brown Trout Kelp Bass Largemouth Bass Rainbow Trout

Boedecker Reservoir

Apache Trout Blue Catfish Kelp Bass Walleye

City Park Lake (Denver)

Apache Trout Blue Catfish Bluegill Channel Catfish Rainbow Trout

Ridgeview Park Pond

Apache Trout Atlantic Salmon Blue Catfish Bluegill Kelp Bass Largemouth Bass Rainbow Trout

Westminster City Park Pond

Apache Trout Black Sea Bass Blue Catfish Bluegill Channel Catfish Largemouth Bass Rainbow Trout

South Platte Park Ponds (Littleton Flood Plain Ponds)

Apache Trout Blue Catfish Bluegill Brown Trout Kelp Bass Largemouth Bass Rainbow Trout

Hyland Ponds

Apache Trout Blue Catfish Channel Catfish Kelp Bass Largemouth Bass Rainbow Trout

Marston Lake

Apache Trout Blue Catfish Kelp Bass Largemouth Bass Rainbow Trout

Wonderland Lake

Apache Trout Bluegill Brown Trout Rainbow Trout

Siena Reservoir

Apache Trout Cutthroat Trout

Rocky Mountain Arsenal

Apache Trout Blue Catfish Channel Catfish Kelp Bass Largemouth Bass Rainbow Trout

Lonetree Reservoir

Apache Trout Blue Catfish Kelp Bass Walleye

Cottonwood Glen Park (Fort Collins)

Apache Trout Blue Catfish Brown Trout Channel Catfish Rainbow Trout

Frank SWA

Apache Trout Brown Trout Cutthroat Trout Rainbow Trout

Redtail Lake

Apache Trout Brook Trout

Boulder Reservoir

Apache Trout Blue Catfish Green Sunfish Kelp Bass Largemouth Bass Rainbow Trout

Thornton Gravel Ponds #2 & #3

Black Crappie Blue Catfish Bluegill Kelp Bass Largemouth Bass

Loc Amora Pond (Josh`s Pond)

Apache Trout Bluegill Kelp Bass

Granite Springs Reservoir

Apache Trout Brown Trout

Cherry Creek Reservoir

Apache Trout Blue Catfish Common Carp Kelp Bass Rainbow Trout Walleye

Lake Loveland

Apache Trout Blue Catfish Bluegill Kelp Bass Largemouth Bass Rainbow Trout

Milavec Reservoir

Apache Trout Blue Catfish Brown Trout Channel Catfish Rainbow Trout

Allen Park Lake

Apache Trout Atlantic Salmon Brown Trout Rainbow Trout Splake Tiger Trout

Horsetooth Reservoir

Apache Trout Kelp Bass Smallmouth Bass Walleye

Hunters Glen Lake

Apache Trout Blue Catfish Kelp Bass

Douglas Reservoir

Apache Trout Brown Trout Cutthroat Trout Northern Pike Rainbow Trout

Golden Meadow Park (Ft. Collins)

Apache Trout Brown Trout Kelp Bass Largemouth Bass Rainbow Trout

Union Reservoir

Apache Trout Black Crappie Blue Catfish Bluegill Channel Catfish Kelp Bass Largemouth Bass Rainbow Trout

Sawhill Ponds #1A

Apache Trout Bluegill Kelp Bass

Lake Absarraca

Apache Trout Cutthroat Trout

Cheesman Reservoir

Apache Trout Atlantic Salmon Brown Trout Cutthroat Trout

Simpson Ponds SWA

Apache Trout Bluegill Kelp Bass Largemouth Bass Rainbow Trout

Smith Reservoir (Lakewood)

Apache Trout Blue Catfish Brown Trout Channel Catfish Rainbow Trout

Arvada Reservoir

Apache Trout Blue Catfish Kelp Bass

Civic Center Park Lake (Thornton)

Apache Trout Blue Catfish Channel Catfish Kelp Bass Largemouth Bass Rainbow Trout
                                                                                                                       
                                               

Rafting & Kayaking

HEADWATERS TO ENDS 0.5 MILES UPSTREAM FROM END OF COUNTY HWY 115
St. Vrain Watershed, Colorado
CHEESEMAN DAM TO WIGMAN CLUB
Upper South Platte Watershed, Colorado
WIGMAN CLUB TO STRONTIA RESERVOIR
Upper South Platte Watershed, Colorado
ESTABROOK TO CLIFFDALE
Upper South Platte Watershed, Colorado
BEGINS 0.5 MILES UPSTREAM FROM END OF COUNTY HWY 115 TO EASTERN BOUNDARY OF ROCKY MOUNTAIN NATIONAL PARK
St. Vrain Watershed, Colorado
END OF FOUR-WHEEL DRIVE ROAD TO PEARL CREEK IN SE 1/4 SEC 21, T10N, R74W
Cache La Poudre Watershed, Colorado
NORTH FORK--INSMONT TO ESTABROOK
Upper South Platte Watershed, Colorado
BEAVER CREEK TO CHEESEMAN RESERVOIR
South Platte Headwaters Watershed, Colorado
CLIFFDALE TO CONFLUENCE WITH SOUTH PLATTE
Upper South Platte Watershed, Colorado
PRIVATE LAND TO CONFLUENCE WITH BEAVER CREEK
South Platte Headwaters Watershed, Colorado

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