Roughly twenty-five thousand Basque aspen carvings record the lives of sheepherders who owned flocks but no land on the open range. The Taylor Grazing Act of 1934 gave grazing preference to landowners and water-right holders, quietly shutting out landless operators. Senator Patrick McCarran then reopened a door for herders by private bill and a 1952 law, and the herder wage and labor pattern outlived the Basques.
The loss of the carvings is Mallea-Olaetxe's inference from aspen lifespan, not a measured rate. McCarran's motives are unsourced, and scholars disagree on whether Basques were preferred for skill or for a constructed racial story.



