The tour came as firefighters raced to get ahead of strong winds expected overnight and authorities struggled to locate 1,011 people who were unaccounted for.
Trump later approved an emergency declaration for the state and praised firefighters and first responders for their "incredible courage".
The Camp Fire that has been ravaging Butte County in Northern California and has claimed more than 70 lives is 55 percent contained, according to a California Department of Forestry and Fire Protection (CAL FIRE) incident update on Saturday morning.
"Like we've done it on goal. You're not going to have a parade", Maggie Crowder of Magalia said this week outside an informal shelter at a Walmart store in Chico.
"You know the floors of the forest - very important", the president said.
The Camp Fire - the deadliest and most destructive wildfire in state history - has destroyed about 9,700 homes and scorched 146,000 acres (an increase of 5,000 acres Friday).
Because the effects of this fire are so vast, the sheriff's office was overwhelmed with calls in the last week.
Trump's tour Saturday marked his second visit to California in the almost two years of his presidency.
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"They are going to be searching vehicles that have been burned". Scientists disagree that poor forest management is primarily to blame for the fire's vast cost in human life and property, as opposed to a combination of factors including climate change and an uptick in population density near fire-prone areas. "And if that isn't bad enough, when I do close my eyes, I see flashbacks of the fire and the people trapped on our streets". Thousands of personnel were battling the blaze that covered about 230 square miles (600 square kilometers) and was halfway contained, officials said.
The number of people unaccounted for has grown to more than 1,000.
While the number of missing persons grew to alarming new levels, the Sheriff also confirmed that 329 people had been found. Honea said the list of missing was dynamic and could easily contain duplicate names and unreliable spellings of names.
The full list likely includes people who fled the blaze and were unknowingly listed as missing, as well as people who were counted twice, local authorities said.
"We are still receiving calls".
"We'll do a real job", Trump said. "This is a massive undertaking". "We'll also be working with environmental groups".
Michelle Mack Couch, 49, lost the home she was renting in Paradise and helped patients escape through a wall of flames as an employee at a skilled nursing facility.
"We just had 10% of our county's housing stock erased in one day; it's hard to convey the significance of that", he said.