On Sunday, around 40 participants, including NYC H2O staff, had to joy of learning about one of Ridgewood Reservoir’s keystyone species, lichen, on walk led by NYBG’s expert and author James Lendemer!

On Sunday, around 40 participants, including NYC H2O staff, had to joy of learning about one of Ridgewood Reservoir’s keystyone species, lichen, on walk led by NYBG’s expert and author James Lendemer!