Although the rivers were flowing high and fast this summer due to heavy rains, the paddlers reported a variety of wildlife sightings — from beavers to eagles — and thought-provoking experiences.

A new book sheds light on the Merrimack's complicated relationship with manmade elements and provides insights on current threats.

The do-it-yourself challenge runs from June 15 through September 30 along the Merrimack River and its tributaries.

New Hampshire PBS will air the Forest Society's acclaimed documentary on Thursday, April 1 at 8 PM.

Thanks to the Clean Water Act of 1972, the Merrimack has been cleaned up considerably over the last 50 years. But there is still work to be done.

The annual series has moved online this year, with experts exploring topics ranging from restoring wildlife habitat to foraging for edible native plants.