Element Threshold Data (R6)

Step 1: Select Items of Interest

Select Items of Interest View Map of USFS Regions (popup window)
  Multiple selections are allowed (drag cursor across items, or hold down Ctrl key while clicking)

You can refine your query using the Minimize button. For example, if you select Region 6 and click "Minimize," the menus will reload with the remaining applicable choices. You will have "minimized" your possible choices to only those which are available in Region 6.
Select Database Fields to Include in Query View Database Field Definitions

Tissue Data

Plot Data

Lichen Names

Step 2: Your Results