Interesting dam with 2 falls and a fountain with a history, plus war memorials. fountain and memorials are on Rockville's Central Park near N41 52.043 W 72 26.884.
Information taken from Yankee Magazine, March, 1971, which is available at the Rockville library.
The gifts of drinking fountains to Boston, Fall River, Pawtucket, Rockville and some two dozen cities, by Henry Daniel Cogswell, a Connecticut Yankee, nearly 80 years ago, [now 112 years], touched off one of the liveliest and angriest artistic controversies of that period. Whenever there are Fine Arts Commissions today to pass on the good taste and suitability of monuments to be erected in public places, acknowledgement must be made to the man who unwittingly started it all. Although they varied somewhat in design, features common to most were sculptured likenesses of marine and animal life-sea serpents,dolphins,frogs,horse's heads,pigeons,long-legged birds of the Huron or crane family and gargoyles. A curious mixture, and hardly things of beauty. But what proved most annoying was the likeness of the donor himself- a larger then life bronze statue of Dr. Cogswell standing atop several of his monuments in full beard and frock coat. In one hand he held a temperance pledge, in the other, an empty glass [for water of course]. Most of them had a underground room where the ice which provided the ice water was housed. Hidden somewhere in the masonry of most fountains was a box of mementos "for remote ages to discover". The mementos turned out to be such unspectacular items as one might find in the corner of an attic- local newspapers, photographs of buildings, and various townspeople, including a shot or two of Dr. Cocswell. Three years after it was setup, on the fourth of July, the statue was "kidnapped" and later found at the bottom of Snipic Lake. The statue was restored to its perch on top of the fountain. After another "kidnapping", it remained "lost" until the Centennial Celebration in 1908, when it reappeared, standing beside the fountain with a placard saying, " I've come back for Old Home Week!" Then the statue was carted off to the Town Farm, where it remained until sold at the outbreak of World War 2, to provide metal for the war effort. There is now a large bowl on top.