The Recreational Aviation Foundation Backcountry Strip Exhibit at Oshkosh and the Idaho Gravel Bar That Lives on the Show Grounds

At EAA AirVenture in Oshkosh, Wisconsin, the Recreational Aviation Foundation (RAF) has built a working replica of an Idaho backcountry landing strip right on the show grounds at Wittman Field - complete with a gravel bar, camp chairs, and a tundra-tired taildragger that looks like it just dropped out of the mountains. The exhibit exists to spotlight the RAF’s core mission: keeping wild, unpaved airstrips open across the United States before they disappear. For pilots, it’s a hands-on look at both the machines and the discipline that backcountry flying demands.

What Is the Recreational Aviation Foundation (RAF)?

The Recreational Aviation Foundation is one of the most consequential aviation advocacy groups that most pilots have never heard of. Its purpose is simple and urgent: preserve, protect, and reopen backcountry airstrips - the grass, gravel, and dirt strips scattered across national forests, riverbanks, and ridgelines throughout the country.

Many of these strips have existed for 80 to 90 years. One by one, they’ve been closing - plowed under, locked up, or simply forgotten. The RAF fights that erosion strip by strip.

The organization works hand in hand with the U.S. Forest Service, the Bureau of Land Management, state agencies, and private landowners. Much of the work is slow and unglamorous: paperwork, meetings, and volunteer trail days where members show up with shovels and rakes to fill potholes by hand. They’ve rescued strips that were days from permanent closure, built entirely new ones, and maintain a national network - publishing guides so pilots know how to fly them correctly.

Why the Gravel Bar Exhibit Matters for Pilots

The exhibit isn’t just a photo op. It’s a teaching station staffed by longtime volunteers who treat backcountry flying as a discipline, not a stunt.

For pilots, the takeaway is twofold. First, access to remote strips is not guaranteed - it can vanish if no one advocates for it. Second, flying into these places safely requires specific knowledge that flatland training doesn’t cover.

The volunteers’ motivation is generational. As one veteran RAF volunteer put it when asked why he spends his time standing on a fake gravel bar talking to strangers: “Because somebody kept these strips open for me. So I keep them open for the next guy.”

What Makes a Backcountry Taildragger Different?

The airplane at the center of the exhibit is a backcountry taildragger engineered to land on ground that would break a conventional aircraft. Its key features:

Tundra tires: oversized, low-pressure balloon tires that absorb rocks and roll over ruts, letting the airplane operate on unimproved surfaces.
Long-travel landing gear: springy and built to soak up firm arrivals onto uneven terrain.
Slow-flight wings: leading-edge slats and large flaps that let the airplane fly very slowly - critical for dropping into short strips, clearing trees, and stopping before an obstacle like a river.

In the backcountry, slow flight is everything. A low approach and landing speed is what makes a tight strip usable at all.

What Skills Does Backcountry Flying Require?

RAF volunteers emphasize several core competencies that separate safe backcountry operations from dangerous ones:

Density altitude awareness. In the mountains on a hot afternoon, thin air robs an airplane of climb performance. A runway that felt generous in the cool morning can become a trap by early afternoon - regardless of how many hours a pilot has logged.

One-way strips. Many mountain strips must be landed uphill and departed downhill, no matter the wind, because terrain blocks one end. On these strips there is no go-around - once committed, the pilot must land, which fundamentally changes how the approach is flown.

Ground assessment and stewardship. Before using a strip, pilots walk it to check for soft spots, rocks, and wildlife. The ethic is “pack it in, pack it out”: fill in ruts left by your tires, leave the land better than you found it, and protect the relationship with the landowners and agencies who permit access. These strips stay open precisely because pilots care for them.

The Bigger Picture

The exhibit draws families as well as pilots - kids reaching up to touch tundra tires taller than they are, parents recounting trips into mountain strips where they camped beside the airplane and watched a moose emerge at sunset. That transmission of experience, from one generation to the next, is exactly what the RAF is trying to preserve.

The underlying idea is straightforward: the freedom to fly into the wild, land on a gravel bar, and camp under the stars is worth protecting - and it can disappear if no one fights for it.

If you’re at the show this week, the exhibit is worth finding. Talk to a volunteer, ask where they’d fly you if they could take you anywhere, and consider adding a backcountry trip to your list.

Key Takeaways

The Recreational Aviation Foundation (RAF) works to preserve, protect, and reopen backcountry airstrips nationwide, partnering with the Forest Service, BLM, state agencies, and private landowners.
The RAF’s Oshkosh exhibit recreates an Idaho gravel bar, complete with a backcountry taildragger, to educate pilots and the public.
Backcountry airplanes rely on tundra tires, long-travel gear, and slow-flight wings (slats and flaps) to operate on rough, short, unimproved strips.
Safe backcountry flying demands mastery of density altitude, one-way strip procedures, and land stewardship - it’s a discipline, not a stunt.
Many wild strips are 80–90 years old and at risk of permanent closure; volunteer advocacy is what keeps them open.