MT. CHARLESTON, Nev. -- Efforts will begin on Sunday to help stabilize the hillsides in Kyle Canyon recently burned by the Carpenter 1 Fire.

Straw will be transported by a helicopter and applied over the burned areas to protect soils from erosion and provide ground cover.

The helimulching will be done on nearly 400 acres on the north facing slopes in upper Kyle Canyon. It's expected the process will take one week with the helicopter operations occurring between 6 a.m. and 6 p.m. daily.

Bristlecone, Bonanza, Trail Canyon, Robbers Roost, Mummy Springs, Telephone Canyon, Fletcher Canyon, Sawmill Loop, and Mary Jane Falls are open. North Loop is open to Charleston Peak only.

Due to the hazards left by the Carpenter 1 Fire, Griffith Peak, South Loop, Cathedral Rock, Echo/Little Falls and the Lovell Canyon Trail System remain closed.

The City of Las Vegas and a third-grade class from Kay Carl Elementary School worked together to plant a tree at a northwest park in honor of Arbor Day.

The students and city officials gathered Monday to plant a tree at Polly Gonzalez Memorial Park, 5425 Corbett Street, at the corner of West El Campo Grande and North Bradley Road.

Besides the Raywood ash tree that was planted, the kids placed a time capsule in the spot that includes short essays from the students about what is happening environmentally in Las Vegas and around the world.

"We had a time capsule where we did research on environmental issues in Las Vegas and Nevada and we planted them so that when we open up the time capsule in 50 or 100 years, they will know exactly the environmental issues of the day," Sue Rodrigues from Carl Elementary School said.

The city has had a program in place since 1950 to plant trees at parks around southern Nevada.

Volunteers are needed to help clean-up a desert area at the base of Lone Mountain.

The Bureau of Land Management, Get Outdoors Nevada and Clark County Commissioner Larry Brown are sponsoring the event Saturday.

They're looking for people to help clean up illegally dumped trash and litter in the area between Lone Mountain Park and the base of Lone Mountain.

Registration starts at 8:30 a.m. on the eastern edge of Lone Mountain. The cleanup effort runs from 9 a.m. to noon. Volunteers should wear sturdy shoes, a hat and sunscreen. The BLM will provide snacks, water, trash bags, gloves and hand tools.

The BLM sponsored 10 similar cleanups each year. Last year, volunteers removed 270 yards of trash from public lands.