The third annual "4th of July" White Mountain Butterfly count was held on Tuesday July 24, 2006. Counters gathered at the Crooked Creek station at 8:00 am and drove up to the highest part of the Barcroft Plateau known as "NASA Flats" (elevation 13,200' - 4025m) to begin counting. This site is new for the count, adding the south base of White Mountain Peak into the count schedule. At this site we observed huge numbers of Shasta Blue butterflies (Plebejus shasta) - in some areas there were 1-3 butterflies per square meter. After counting there, we drove down the transect to Barcroft Observatory, Barcroft Station, Sheep Pass, Campito Meadow, Big Prospector Meadow, and Crooked Creek Station, the same sites as in prrevious years. The number of Shasta Blues declined as we descended, and we began to pick up a few P. icarioides and a few other species, but the numbers were sparse except for the P. shasta. The count totals may be seen in the count excel spreadsheet. Site information may be found in the count site excel spreadsheet.