While visiting California's wildfire zones on Saturday, Trump told reporters that Finland spends "a lot of time on raking and cleaning and doing things" to clear forest floors, citing his discussions with Finnish President Sauli Niinisto.
Sheriff Kory Honea expressed hope that Mr Trump's visit would help with recovery, saying the tour by the Republican president and California's Democratic leaders "signals a spirit of cooperation here that ultimately benefit this community and get us on a path toward recovery".
The remains of 77 people have been recovered after California's deadliest wildfire, with nearly 1,000 people listed as missing.
Mr Niinisto said: "I mentioned to him that Finland is a land covered by forests and we also have a good monitoring system and network".
Rain is forecast for the area this week, potentially helping douse the flames, but raising the risk of floods and mudslides that will swell the misery of 46,000 people under evacuation orders.
The Butte County Sheriff's Office said the list of the missing is compiled using information received from a special hotline, as well as emails and emergency-911 calls that came in during the first chaotic hours of the blaze.
In Paradise, home to almost 27,000 people before the Camp Fire struck, two forensic anthropologists for the University of Nevada, Reno, were helping firefighters on Saturday sort through the wreckage at a mobile home park for senior citizens. "It's like total devastation", Trump said as he stood amid the ruins of Paradise and pledged the full support of the federal government.
"There have been some back and forth between California leaders and the president", Mr Brown said.
She said she was angry about Trump's tweet last week blaming forest mismanagement for the November 8 fire, a sentiment he evoked in his visit that has stirred resentment among survivors.
Finns were certainly amused by the idea that their country, which is larger than New Mexico and is also three-quarters forest, avoids wildfires through widespread raking.
Finland has a notably different climate from dry California, being more than 20 degrees further to the north than the region hit by the Camp Fire. "I don't think we'll have this again to this extent".
As of Friday, the only missing mountain lion was one dubbed P-74, a young male born past year. It was 65 per cent contained.
The Woolsey fire has been linked with three fatalities and has destroyed at least 500 structures in the mountains and foothills near the Malibu coast west of Los Angeles.
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