Stewart posted: "There is NO browse problem."
I heard the same sort of thing from "ranchers" on Kodiak who put their cows out in belly deep grass, and couldn't understand why they were starving to death with a full rumen.
Stewart--Caribou are heavily dependant on lichens for their nutritional requirements. You could have grass that's waist high, and it doesn't provide any information at all regarding caribou forage. How'd the lichen crop out there look to you?