What is killing the fish is being investigated.

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Commuters Enjoy Great Weather For Bike To Work DaySee CBS4's reports from several different Bike to Work Day stations on Wednesday.
City Hopes Program Helps Deter Illegal Firework ActivityThe City of Lakewood is deploying a new tactic to find hotspots of illegal fireworks activity, and residents are already using it.
Search Continues For Violent Offender Who Escaped Youth FacilityQuinn Scaggs escaped from Lookout Mountain Youth Facility early Tuesday.
Search Continues For 'Violent' Teen Who Escaped From Youth FacilityQuinn Scaggs escaped from the Lookout Mountain Youth Services in Golden.
Federally Protected Vultures Causing Problems For Some Longmont ResidentsThe turkey vultures' droppings are aggravating residents of the northern Colorado city.
Former Mayor Wellington Webb Joins Fight Over The Future Of Park Hill Golf CourseFormer Denver Mayor Wellington Webb is asking people who live in Denver to fight the sale of the Park Hill Golf Course.
Brighton Couple, Vail Man Killed In Skydiving Plane CrashThe plane crashed in Hawaii, killing 11 people on board.
Mother's Story About Ticks Serves As A Warning To ColoradansIt's tick season, and the wet spring and summer we've experienced in Colorado means an increased chance of finding one on your body if you head out into the wilderness.
Uber And Lyft Pick Up, Drop Off Passengers At Different Place At Denver International AirportDIA passengers who need a Lyft or an Uber to pick them up or drop them off at the airport will need to meet their driver on Level 5.

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Snow Closes Trail Ridge Road- AgainThe popular destination for Summer visitors in Rocky Mountain National Park is closed.
Westminster Man Has Warning After Dog Killed By CoyoteThe family pet was killed by a coyote near 88th and Federal.
Dinosaur Fossils Revealed To Be TriceratopsThe dino dig in Highlands Ranch is that of a triceratops.
Fire Crews Train For Wildfire SeasonThe crews gathered in Summit County to train for wildfire season.
Youth Baseball Game Brawl Video Goes Viral, Now Concern Emerges For Young UmpiresThe now-viral video taken at a Westgate Elementary School field during a Bear Creek Junior Baseball game could make some young people hesitate to sign up to be umpires.
Tariffs On The Minds Of Colorado Companies At Outdoor Retailer Summer MarketThe outdoor retailer expo kicked off in Denver on Wednesday, bringing with it hundreds of companies and leaders in the industry.
Gunfire In Denver Affordable Housing Complex: 'I Would Be Dead Right Now'You wait for years to get into affordable housing, but when a bullet flies through your apartment do you stay or go?
5 Cited In Youth Baseball Brawl, Investigation ContinuesLakewood police search for a man in teal shorts that left one man seriously injured.
Police Want More Information After Youth Baseball BrawlLakewood police are searching for a man in teal shorts who left someone injured.
'Honoring Mr. B' Thousands Attend Celebration Of LifeDenver Broncos owner Pat Bowlen passed away last week at age 75.
Football Royalty Among Fans Honoring 'Mr. B'Fans, players, family honor the late Pat Bowlen at Broncos Stadium at Mile High.
Investigators Update Crash Which Killed Colorado State Patrol TrooperThe Colorado State Patrol offered new details about the crash that killed one of their own on Friday night.
Move Over Law Highlighted After Trooper's DeathMore details about the initial crash Colorado State Trooper William Moden was investigating before he was killed by another driver Friday night have been released.
Fallen State Trooper William Moden's Truck Covered With Flowers, CardsColorado State Patrol invited the public to remember one of their own with a memorial set up in Commerce City.
Father Teaches Son Love & Acceptance At Denver Pride ParadeEvery June when the weather warms up, Pride Month kicks off in Denver.
Coloradan Details Scary, Hard Landing In New JerseyPassengers who left Denver International Airport for Newark, New Jersey Saturday were greeted on the east coast with a scary landing.
Colorado State Patrol Mourns As Another Trooper Struck, KilledThe Colorado State Patrol mourns the loss of a trooper who was hit and killed Friday night in the line of duty.
Trooper Struck, Killed By Vehicle On I-70The Colorado State Patrol mourns the loss of a trooper who was hit and killed Friday night in the line of duty.
Company Says Glass Shield Is Bullet ProofThe high-tech laminate goes on glass and creates a one-way protective layer.
Repeat DUI Offender Convicted Of MurderThis is the 6th DUI conviction for Todd Grudznske.

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