UPDATE: Better Aerial Mapping Shows 114 Acres Burned In 37E Fire, 30% Contained
LARIMER COUNTY, Colo. (CBS4)– Mandatory evacuations were ordered Friday afternoon for residents in the Blue Mountain area near where the 37E wildfire was burning. The Larimer County Sheriff’s Office tweeted about the wildfire at 4 p.m.

(credit: CBS)
It was nearly 4 hours later when Larimer County Sheriff’s Office provided an update about the acreage of the 37E Fire, about 300 acres and zero percent containment. Crews will continue to work the fire overnight. There are 130 personnel from multiple agencies fighting the fire, with more resources on the way.
#37EFire Update – Fire is estimated @ ~300 acres, 0% containment. Crews will continue to work overnight. 130 personnel from multiple agencies with more on the way. Visit https://t.co/DysDvlyX2T for evac maps and road closures. https://t.co/1oKSDJqvyl
— Larimer Sheriff (@LarimerSheriff) April 16, 2022
Copter4 flew over the fire, located about 3-4 miles north of Lyons, that was sending up a huge plume of white smoke along the Front Range. Airtankers could be seen making water drops on the fire and others dropping fire retardant to keep the flames from spreading.

(credit: CBS)
The 37E Fire in Larimer County has caused the road closure of 71 N (Blue Mountain Road) at the intersection of Hwy. 36 and N. 53rd Street, at the intersection of Hwy 66. #37EFire
— Boulder OEM (@BoulderOEM) April 16, 2022
The 37E Fire has forced the closure of 71N (Blue Mountain Road) at the intersection of Highway 36 and N. 53rd Street, at the intersection of Highway 66.
The first set of mandatory evacuations included those on Vision Way.
Updated evacuation map for the #37EFire north of Lyons as of 8:30 PM Friday.
Red = Mandatory Evacuation/Evacuation Order.
Follow @LarimerSheriff @LarimerOEM @BoulderOEM for updated information. You can view a current zoomable version of this map at https://t.co/FGbGJKmYV1. pic.twitter.com/1dbyWJK8uR— NWS Boulder (@NWSBoulder) April 16, 2022

(credit: CBS)
This is the Larimer County Sheriff's Office with an emergency message. We are working a wildfire in the area of Vision Way and County Road 37E in the Blue Mountain area. Fire officials have issued mandatory evacuations for all residents on Vision Way. Plea https://t.co/NblqtfpSN1
— Larimer Sheriff (@LarimerSheriff) April 15, 2022
A short time after announcing the first set of mandatory evacuations, Larimer County issued more, this time for residents living on Dakota Ridge Road and Chimney Hollow Road.

(credit: CBS)
This is the Larimer County Sheriff's Office with an emergency message. We are working a wildfire in the Blue Mountain area. Fire officials have issued mandatory evacuations for residents living on Dakota Ridge Road and Chimney Hollow Road. Pleas https://t.co/xrlYLMSA71
— Larimer OEM (@LarimerOEM) April 15, 2022
That was followed by more evacuations for residents on Moss Rock Drive on both sides of the Larimer-Boulder county line.
This is the Larimer County Sheriff's Office with an emergency message. We are working a wildfire in the Blue Mountain area. Fire officials have issued mandatory evacuations for residents on Moss Rock Drive on both sides of the Larimer/Boulder Cou https://t.co/TkiHm2ibvX
— Larimer Sheriff (@LarimerSheriff) April 15, 2022
Followed by even more evacuations for those living south and east of County Road 37E to the Larimer-Boulder county line.
This is the Larimer County Sheriff's Office with an emergency message. We are working a wildfire in the Blue Mountain area. Fire officials have issued mandatory evacuations for residents living south and east of County Road 37E to the Larimer/Bo https://t.co/6YGrkJAtrP
— Larimer Sheriff (@LarimerSheriff) April 15, 2022

(credit: CBS)
This is the Larimer County Sheriff's Office with an emergency message. We are working the 37E Fire in the Blue Mountain area. Fire officials have issued voluntary evacuations for residents from Chimney Hollow Road east to County Road 31 and nort https://t.co/0OT26m9UOr
— Larimer Sheriff (@LarimerSheriff) April 16, 2022
More evacuations were ordered just after 7:30 p.m. Friday, this time voluntary evacuations, for residents from Chimney Hollow Road east to County Road 31.
Just before 8:30 p.m. Boulder OEM issued an evacuation warning for the areas of Stone Canyon, Eagle Ridge and Steamboat Valley north to the Larimer County line due to the 37E Fire.
This is the Boulder County Sheriff's Office Emergency Notification System. At 20:26:16 on 04-15-2022, an Evacuation Warning has been issued for the area(s) of Stone Canyon, Eagle Ridge, and Steamboat Valley, north to the Larimer County line due to a fire.
— Boulder OEM (@BoulderOEM) April 16, 2022
There is an evacuation point at the Lifebridge Church parking lot, 10345 Ute Hwy, Longmont. https://t.co/YQ0JoKOZlF
— Larimer Sheriff (@LarimerSheriff) April 15, 2022
An evacuation point in the Lifebridge Church parking lot, located at 10345 Ute Hwy in Longmont, was opened on Friday afternoon and then closed for the night. Volunteers of the Red Cross will remain on standby for those who need help.
The evacuation center at the LifeBridge Christian Church is closed for the evening. Red Cross volunteers remain on standby if further assistance is needed.
— cowyredcross (@COWYRedCross) April 16, 2022

(credit: CBS)
Red Cross #EvacCenter is open & ready to accommodate anyone needing assistance due to the fire burning near #LyonsColorado in the #BlueMountain area. The center is at the LifeBridge Christian Church: 10345 Ute Hwy, Longmont, CO 80504. Up to date info at https://t.co/2xidORw7zG pic.twitter.com/1wwijSmXvR
— cowyredcross (@COWYRedCross) April 16, 2022
A large animal evacuation shelter is available at the Boulder County Fairgrounds, 9595 Nelson Road, Longmont. They will accept animals until 10:00 p.m. If you need assistance with animal evacuations/shelters, please contact BCSO dispatch at 303-441-4444.
— Boulder OEM (@BoulderOEM) April 16, 2022
There are reports of hundreds of customers in the area without power due to the 37E Fire and power poles being damaged.
Outage update: We have reports of poles being damaged in the #37EFire area. There are currently 437 members without power. Crews are working to reroute power and restore electricity to as many members possible while changing out the damaged poles. Stay safe!
— Poudre Valley REA (@PoudreValleyREA) April 16, 2022
About an hour later, only 17 customers were reported to be without power while crews replaced power poles.
#37EFire outage update: Power has been restored to most members, 17 services remain out of service. Crews are working to replace 4 poles. Stay safe.
— Poudre Valley REA (@PoudreValleyREA) April 16, 2022
The #37Efire is producing lots of smoke in southeastern Larimer County, with effects reaching into northeastern Boulder County. An Air Quality Health Advisory for Wildfire Smoke has been issued for this area through Saturday morning. #cofire https://t.co/PaQkiO4q1J pic.twitter.com/7vykc1AYlU
— CDPHE Air Pollution (@cdpheapcd) April 16, 2022
In December of last year, the Marshall Fire destroyed more than 1,000 homes and buildings in Boulder County.