  Project GRAND preents a map in right ascension and declination for single
cosmic secondary tracks which have been identified as muons. These muons are
measured in stations of proportional wire chambers (PWCs) which have a mean
angular resolution of 0.26 deg. A 50 mm steel plate interspersed with the PWCs
is used to distinguish muons from electrons. Two years of data are accumulated
in a map of right ascension and declination which covers all of the northern
hemisphere and a small portion of the southern hemisphere. The total number of
muon tracks in this data sample are 40 billion. Significant large angular
structure is found in this map; the deviations from average are small compared
to the average, but because of the high statistics, the deviations from average
are statistically significant to many standard deviations. Systematic effects
in the data are minimized by averaging over this two year period. These results
are similar to those obtained in previous data.
