to make land selections of the granted under the act. In some cases Native corporations received outside aid in surveying the land. For instance, Doyon, Limited (one of the 13 regional corporations) was helped by the Geophysical Institute of the University of Alaska. The Institute determined which land contained resources such as minerals and coal. NASA similarly provided satellite imagery to aid in Native corporations finding areas most suited for vegetation and their traditional subsistence culture. The imagery showed locations of caribou and moose, as well as forests with marketable timber. In total about were analyzed for Doyon. Natives were able to choose tens of thousands of acres of land rich with timber while Doyon used mineral analysis to attract businesses. The state of Alaska to date has been granted approximately 85% or of the land claims it has made under ANCSA. The state is entitled to a total of under the terms of the Statehood Act. Originally the state had 25 years after passage of the Alaska Statehood Act to file claims under section 6 of the act with the Bureau of Land Management (BLM). Amendments to ANCSA extended that deadline until 1994, with the expectation that BLM would complete processing of land transfers subject to overlapping Native claims by 2009. Nonetheless, some Native and state selections under ANCSA remained unresolved as late as December 2014. Criticism of ANCSA There was largely positive reaction to ANCSA, although not entirely. The act was supported by Natives as well as non-Natives, and likewise enjoyed bipartisan support. Natives were heavily involved in the legislative process, and the final draft of the act used many AFN ideas. Some Natives have argued that ANCSA has hastened cultural genocide of Alaska Natives. Some Natives critiqued ANCSA as an illegitimate treaty since only tribal leaders were involved and the provisions of the act were not voted on by indigenous populations. One native described it as a social and political experiment. Critics have also argued that Natives so feared massacre or incarceration that they offered no resistance to the act. Others have argued that the settlement was arguably the most generous afforded by the United States to a Native group. They note that some of the largest and most profitable corporations in the state are the twelve created by ANCSA. Other critics attacked the act as "Native welfare" and such complaints continue to be expressed. The corporation