Western Watersheds Study Tour: Circuit trip, notebook 1, loose notes Image Read more about Western Watersheds Study Tour: Circuit trip, notebook 1, loose notes
Cooperative Snow Surveys. Correspondence about shelter cabins for wilderness survival Image Read more about Cooperative Snow Surveys. Correspondence about shelter cabins for wilderness survival
Cooperative Snow Surveys. Maps of 9 snow courses; letter about their numbering and signage Image Read more about Cooperative Snow Surveys. Maps of 9 snow courses; letter about their numbering and signage
