Olympic is the quietest unit in the National Park Service’s 84 million acres

Evidence

But few value Olympic National Park as I do: with my ears. I believe that Olympic Park is quieter than any other national park or wilderness area in the 390 units of the 84 million acres managed by the National Park Service—including the largest, Wrangle–St. Elias in Alaska, where squadrons of vacationing flightseers break the silence on a clear day. — Gordon Hempton, John Grossmann, One Square Inch of Silence- One Man’s…, 70

Categorization

• QUESTION: Is this verified anywhere, or is it Hempton’s subjective listening survey? Worth checking whether a formal acoustic survey ranks park units.
• corroborated: 2 independent passages support this claim — Gordon Hempton, John Grossmann, One Square Inch of Silence- One Man’s…, 70
• XREF: connects to: Olympic National Park’s quiet stems from lacking roads and air tourism — Gordon Hempton, John Grossmann, One Square Inch of Silence- One Man’s…, 59; Overcast skies protect Olympic Park’s quiet by deterring scenic flights — Gordon Hempton, John Grossmann, One Square Inch of Silence- One Man’s…, 70

Broader Connections

• Olympic National Park’s quiet stems from lacking roads and air tourism #expands (0.85) — Gordon Hempton, John Grossmann, One Square Inch of Silence- One Man’s…, 59
• Overcast skies protect Olympic Park’s quiet by deterring scenic flights #expands (0.75) — Gordon Hempton, John Grossmann, One Square Inch of Silence- One Man’s…, 70