Timber on the Foley Butte Block was cruised by Atter-
bury Consultants, Inc. fromApril 3 to May 7, 2013.
Cruise Procedures
A total of 1,261 variable radius sample plots were mea-
sured at an average sample intensity of 1 plot per 23
acres. Plots were cruised using a basal area factor of
10, sighting the trees at dbh. Tree heights, diameters
and form factors were measured at each plot location.
Each sample tree log was sorted and graded for wood
quality. A nested fixed radius plot of 11.78 feet was in-
stalled at the same sample point to tally trees 6 inches
in diameter and smaller.
Timber volumes were calculated using SuperACE, a
variable bole height, variable log length timber cruise
program, which utilizes various taper equations to
predict log diameters.
Overall, 10,600 trees were recorded and measured
yielding a net Bf/Acre sample error of 2.7% at one stan-
dard deviation. Logs were cruised in 32-foot maximum
lengths according to eastside grading rules. Minimum
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