title: Lunar Surface Strength Estimate from Orbiter II Photograph.
abstract: Lunar Orbiter II photographed a 13-meter boulder which has rolled down the inner slope of a 3-kilometer crater leaving a track 6 meters wide. A static-bearing . strength of 4 x 10(6) dynes per square centimeter at 75-centimeter depth is estimated from these data if certain assumptions are made.
authors.forename: A L
authors.initials: AL
authors.lastname: Filice