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Monday morning, the Cameron Peak Fire mapped at more than 13,000 acres. Monday evening, officials said better mapping had dropped the fire by about 1,000 acres.
The fire — burning 60 driving miles northwest of Fort Collins, or 40 miles if drawing a straight line from Fort Collins to the fire — was measured by GIS mapping to be 12,323 acres and remains at 0% containment as of Monday evening.
Previous mapping, which measured the fire at 13,305 acres, was done by multi-mission aircraft.
How can the two be so different?
According to an explanation posted on the official Cameron Peak Fire Facebook page, mapping done by multi-mission aircraft detects the fire's perimeter and everything within that perimeter is tallied as burned acreage.
The story continues below the video.
That means that Chambers Lake, Lost Lake and Laramie Lake were all included in earlier measurements of the fire. Chambers Lake, the largest of the three, has a surface area of 255 acres, while Lost Lake has a surface area of 5 acres, according to Colorado Parks and Wildlife. Laramie Lake is about 35 acres, according to the fishing site Lake-Link.
GIS mapping uses heat signatures to "create a more realistic map that has curves," according to a comment on the post from the Cameron Peak Fire page, taking the lakes out of the measurement as well as providing a more sophisticated measurement of other areas of the fire.
Looking for more Cameron Peak Fire updates? We'll continue to provide our community updates on the fire's size and its impacts to Northern Colorado, both with new stories and by updating the links below:
►Wildfire map: Track smoke, fire from Cameron Peak Fire
►Heads up: Road closures, evacuation orders in Northern Colorado due to Cameron Peak Fire
►Smoke, flames and sunsets: See the photos, videos from the Cameron Peak Fire
Sarah Kyle is a content coach at the Coloradoan. Contact her at sarahkyle@coloradoan.com. Support her work and that of other Coloradoan journalists by purchasing a digital subscription today.
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Why the Cameron Peak Fire dropped about 1K acres with new mapping tool - Coloradoan
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