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Update: The fire did not grow overnight and containment remains at 77%, according to a Larimer County Sheriff's Office release at 8 a.m. There are small pockets of vegetation burning in the interior of the fire, which crews will work on today to obtain 100% containment.

Favorable weather conditions Monday helped firefighters make significant gains on the McNay Fire, burning 35 miles northwest of Fort Collins.

Fire crews and aircraft kept the fire from spreading throughout the day with the help of moderate winds from the northwest that blew the fire back on itself. The fire is located about eight miles west of Livermore and is burning exclusively on the Lone Pine State Wildlife Area, which is managed by Colorado Parks and Wildlife.

At 7:30 p.m., the Larimer County Sheriff's Office reported the fire was at 542 acres with containment growing to 77%. Monday started with the fire at 32% containment.

Monday's gains also prompted these events:

Release of all aircraft

Crews will remain overnight to monitor the fire

Ground firefighters will return in the morning to resume operations

All voluntary evacuations have been lifted

All roads are open

Poudre Valley REA will be working on the power lines inside the fire zone Tuesday. By Monday afternoon it was able to restore power to all 3,600 members in the area after rerouting power to distribution lines.

There have been no injuries and no damage to structures from the fire, which started Sunday when a vehicle caught fire.

Miles Blumhardt looks for stories that impact your life — be it news, outdoors, sports, you name it he wants to report it. Have a story idea, send it his way. Email him at milesblumhardt@coloradoan.com or find him on Twitter at @MilesBlumhardt.