LAS VEGAS (AP) — A conservation nonprofit that previously raised $80 million is using more funds to pay for improvements at Nevada's Great Basin National Park and Death Valley National Park on the Nevada-California border, among others.

The Las Vegas Review-Journal reports the San Francisco-based Fund for People in Parks has raised more than $800,000 for 30 projects at 11 different parks.

Most of the donations were in the $25,000 to $50,000 range and were used to pay for things like interpretive signs, trail improvements, exhibits and orientation films.

Fund for People in Parks Executive Director Bob Hansen says he decided to spend his "semiretirement" helping the parks. He says the focus of the nonprofit is to give "visitors something more than they bargained for."