The north-south road through northern California’s Lassen Volcanic National Park finally opened Thursday after nearly four months of snow-clearing work.

USA Today reported that the opening of California 89, called Lassen National Park Highway for the 30 miles it traverses through the park, set a record, park officials said.

“This year’s opening of the highway will be the latest in park records dating back to 1931,” Lassen Superintendent Jim Richardson said.

Since 1980, the latest opening was July 21, 1995, according to park logs.

For the most part, the snowy winter’s still-persisting snowpack caused the delay, especially a section between Lassen Peak parking area, about 130 miles north of Sacramento and 50 miles east of Redding in the Sierra Nevada, and Summit Lake.

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