maps

During this time of infinite boredom, I was trying to do a little mapping for the warmer months. So I tried to go back to an old favorite looking at the old topos that have been online for so long now. Does anyone know how to find the Historical maps of New York and New England anymore from a UNH website if I remember correctly ? Do they have a different website now or a different way to find them now ? They were really interesting and a very useful tool and I hope they still exist somewhere online. If anyone has a bit of info that would be great ! Tx everyone

Joe