The USDA Forest Service is soliciting quotes for a Blanket Purchase Agreement (BPA) Call Order for stocking surveys in the Lolo National Forest, Missoula and Powell Counties, Montana. To respond to this solicitation, contractors must have an existing Land Management Integrated Resources (LMIR) BPA that includes Stocking Surveys within the specified area. The BPA Call Order Form is attached, and contractors must sign and return the SF-30 with their quote to acknowledge the amendment. * The BPA has a continuous pre-solicitation sharing that allows contractors to join at any point in time while the BPA is active. * The LMIR BPA has a ceiling amount of $50 million per contractor. * Amendment 1 corrects the estimated quantity of line item 2a on the BPA Call Order Form from 414 to 207 plots.