GAMBELL, ALASKA, FEB. 11 -- While record numbers of Soviet bombers are being intercepted off Alaska's coast, the National Guard's Eskimo scouts on remote St. Lawrence Island say Soviet commandos may have come calling.

Members of the Guard's 1st Scout Battalion declassified some of their intelligence files this week and showed reporters snapshots of flotsam found near beaches and stacks of documents about sightings of mysterious humans.

Despite discoveries of such things as a Soviet life raft half-buried above a deserted beach, and despite reports of people rushing away when approached, Sgt. 1st Class Renard Nichols was not willing to flatly state that the Soviets have landed troops on the island.

"If I get my hands on a Spetsnaz body, then we'll agree that it's a Russian," he said, referring to members of the Voiska Spetsialnovo Naznacheniya, an elite group equivalent to the U.S. Army's Special Forces.

"There is no convincing evidence that the Soviets have landed on St. Lawrence Island, no conclusive evidence . . . " Dan Howard, the Pentagon's chief spokesman, said.

The Soviet military presence in the North Pacific has been growing steadily during the past few years.

Last year, Alaskan Air Command F15s intercepted 56 Soviet aircraft, including 50 Bear bombers, in 31 incidents near Alaska. The Soviet navy also has increased its Pacific fleet with long-range, nuclear-armed air-to-surface and submarine-launched cruise missiles.

St. Lawrence Island, about 40 miles from the nearest Siberian landfall, collects debris from a variety of sources, much of it from fishing boats working in the Bering Sea.

"What we concern ourselves with is something like a Soviet-made battery found two miles inland," said Nichols in Nome. "And when we hear about a frogman and there aren't any {fishing} boats around, that sets the alarm bells ringing."

But he added, "We work just as hard to prove these things erroneous as we do that there were Russians on the U.S. mainland."