Gravelly Valley Airport in Potter Valley, California

Gravelly Valley Airport (27445) — Potter Valley, California

Gravelly Valley Airport (FAA Identifier: 27445) is a private-use general aviation airfield located in Potter Valley, a rural community in Mendocino County, California. Situated in the upper Eel River watershed at an elevation of approximately 1,350 feet above mean sea level, the airport serves the agricultural and ranching community of Potter Valley and provides essential air access to this otherwise remote region of Northern California's Coast Ranges.

Potter Valley lies roughly 20 miles northeast of Ukiah, the Mendocino County seat, and Gravelly Valley Airport functions as a critical link between this inland valley and the broader aviation network. The airport's single runway accommodates light single-engine and twin-engine piston aircraft commonly used by local landowners, agricultural operators, and emergency services. Its position in Mendocino County places it within range of larger regional facilities including Ukiah Municipal Airport (UKI), approximately 25 miles to the southwest, which offers instrument approach procedures and commercial charter services.

The surrounding landscape of Potter Valley is defined by the East Fork of the Russian River and the valley's productive farmland, which has historically supported pear orchards, vineyards, and cattle ranching. Gravelly Valley Airport reflects the long tradition of general aviation in rural California, where private airstrips enable landowners and agricultural businesses to access properties that would otherwise require lengthy drives over mountain roads. Lake Pillsbury, a reservoir operated by Pacific Gas and Electric approximately 10 miles to the north, draws recreational users to the area and contributes to occasional light aircraft activity at the airport.

From an operational standpoint, pilots using Gravelly Valley Airport should be aware of the terrain-influenced weather patterns common to interior Mendocino County. Tule fog can settle into the valley floor during late autumn and winter months, reducing visibility to near zero without warning. Summer months bring dry, thermally active conditions, with afternoon density altitude considerations relevant at the airport's moderate elevation. Pilots are advised to consult current METARs and TAFs from nearby Ukiah Municipal Airport and to monitor Mendocino County Office of Emergency Services advisories during fire season, as the surrounding hills and national forest lands are subject to seasonal wildfire activity that can generate smoke and ash affecting visibility and air quality throughout the valley.

Gravelly Valley Airport operates without an air traffic control tower and without published instrument approach procedures. All operations are conducted under visual flight rules, and pilots are expected to self-announce on the common traffic advisory frequency. The airport does not offer on-site fuel, maintenance, or rental services; pilots should plan fuel stops at Ukiah Municipal Airport or Willits Municipal Airport (O28) before or after visiting the field. Willits Municipal Airport lies approximately 30 miles to the north and provides 100LL avgas for general aviation users.

Access to Gravelly Valley Airport by road involves Potter Valley Road from Ukiah, a route of approximately 25 miles that passes through the town of Potter Valley and continues northeast into the valley. Ground transportation options in this rural setting are limited; visitors arriving by air typically have pre-arranged vehicle access through local contacts or property owners. The nearest full-service rental car facilities are located in Ukiah, and the nearest commercial airline service is available at Charles M. Schulz–Sonoma County Airport (STS) in Santa Rosa, approximately 75 miles to the south.

For pilots engaged in search and rescue coordination, fire support observation, or agricultural survey flights across the Mendocino National Forest and adjacent private lands, Gravelly Valley Airport provides a strategically useful staging point. The airport's proximity to the forest boundary and Lake Pillsbury Recreation Area makes it a reference point for local flight operations supporting land management activities. Pilots coordinating with the US Forest Service or Cal Fire for aerial observation missions over the Mendocino National Forest should contact the Upper Lake Ranger District office in Upper Lake for current airspace and operational guidance relevant to this region of Mendocino and Lake Counties.