Was up at Eagle Peak several years ago. But the South Warners are several hundred miles north of the Bristlecone Pine range limits. Can't tell from photo, but my guess is Lodgepole Pine or Whitebark Pine.
"As an adolescent I aspired to lasting fame, I craved factual certainty, and I thirsted for a meaningful vision of human life - so I became a scientist. This is like becoming an archbishop so you can meet girls."