Nineteen female grizzly bears with cubs were sighted in Yellowstone National Park in 1988, the second-highest number in the past 20 years, the Interagency Grizzly Bear Committee reported Friday.

The committee formed in 1983 to coordinate efforts to assist the recovery of the threatened grizzly populations in the lower 48 states also said the average grizzly litter size in Yellowstone last year was 2.1 cubs per female."Perhaps the most positive sign is the status of grizzly bear populations in the Yellowstone and North Continental Divide ecosystems," said Dale Strickland, chairman. "Reproductive and mortality rates indicate healthy populations." Strickland said it is difficult to estimate the size of the Yellowstone grizzly population currently, but it is probably more than 200.