GRANTS PASS, Ore. — A government report finds that hiking trails on national forests suffer from a $314 million backlog in maintenance.

The Government Accountability Office report found only a quarter of the national forest system’s 158,000 miles of trails meets quality standards, neglect that can lead to erosion and silt deposited in streams.

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It adds that the U.S. Forest Service relies heavily on volunteers to maintain trails but does not train its staff to work effectively with them.

Jim Furnish is a retired Forest Service deputy chief for the forest system. He says the problem goes back decades, and results from the Forest Service and Congress making recreation a low priority.

Forest Service spokesman Larry Chambers says the agency agrees with the findings and will look for ways to close the funding gap.