<em>It commonly opens about the first of April, a week or ten days later than Flint's Pond and Fair Haven, beginning to melt on the north side and in the shallower parts where it began to freeze.</em>
answer: In the spring thoreau pick a spot by walden pond
a small glacial lake located 2 miles (3 km) south of Concord on land emerson owned. Early in the spring of 1845, thoreau, then 27 years old, began to chop down tall pines with which to build the foundations of his home on the shores of Walden pond.
