More than 2,200 firefighters are battling the fire, and they are requesting more bulldozers, fire engines and hand crews to fight the flames.
The park experienced power outages related to the fire on Tuesday and Wednesday, but electricty has been fully restored, said Richards.
Roughly a dozen of the destroyed homes had dotted hills 10 miles west of Maricopa.
Yosemite does not appear at risk from the fire, which was moving south Wednesday, away from the park, California fire spokesman Jordan Motta said.
Mariposa escaped damage as 58 homes and 60 other building elsewhere in the area were burned by the wildfire that has scorched 115 square miles (298 square kilometres), threatened at least 1,500 homes and forced nearly 5,000 people to evacuate.
"The place is like a ghost town", Dewey said.
"It's being planned and will be done as soon as areas are deemed safe", said Batallion Chief Jeremy Rahn, a Cal Fire public information officer. The wildfire has scorched 110 square miles (282 square kilometers), threatening at least 1,500 homes. Almost 5,000 people have been ordered to leave their homes, officials said.
At its closest, the blaze was still about 35 miles (56 kilometers) from the boundary of Yosemite, where campgrounds are open, park spokesman Scott Gediman said.
Firefighters tackle the Sand Fire in Santa Clarita, California, USA, 24 July 2016. The Detwiler fire is now at 10 per cent containment.
Skydiver kills self by not opening parachute
But, by the time the message got up to the crewman who were on the plane with Vitantonio , he had already jumped from 13,500 feet. Police say in the video Vitantonio told his wife he was " not going to pull the cord and that he was going somewhere wonderful ".
"We saw the fire come over the ridge on the north side of Mariposa and it crested the ridge just at sundown" when it was cooling down, Motta said.
The Gold-Rush town of Mariposa being threatened by the fire is essentially empty.
A wind-driven wildfire that destroyed four homes in rural northeast Nevada and damaged several more is now 90 percent contained.
Large animals can be taken to the Mariposa County Animal Control.
About 50 Yosemite National Park employees, however, have been displaced because of the blaze, said Yosemite spokeswoman Jamie Richards. But the park has fielded calls from people concerned that attractions or roads might be closed.
Among park visitors Gediman talked to, "people understand fire is a naturally occurring thing", he said.
Record rain and snowfall in the mountains this winter abruptly ended California's five-year drought.
Firefighters were battling 17 blazes across the state.
Gov. Jerry Brown has declared an emergency, bolstering the state's resources to battle the fire that he said has forced thousands of residents to flee and is expected to continue burning.
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