Arbor Day fifteenth day of the month Esfand, which usually corresponds with March 5. This day is the first day of the "Natural Recyclable Resources Week" (March 5 to 12). This is the time when the saplings of the all kinds in terms of different climates of different parts of Iran are shared among the people. They are also taught how to plant trees. The Jewish holiday Tu Bishvat, the new year for trees, is on the 15th day of the month of Shvat, which usually falls in January or February. Originally based on the date used to calculate the age of
Valentine, Nebraska "station stopping place" or "water and waterfall city". Valentine is located at (42.873686, −100.550308). According to the United States Census Bureau, the city has a total area of , of which, is land and is water. Valentine is immediately north of the Niobrara River, on the northern edge of the Sandhills physiographic region. Merritt Reservoir, created by a dam on the Snake River, is located about southwest of Valentine. Snake River Falls, the largest waterfall in Nebraska, is located on the Snake River between the reservoir (a few miles downstream) and Valentine. Smith Falls, the tallest waterfall in Nebraska, is