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Bagh Gol is located North of Tehran in the Alborz mountains range, just behind Tochal mountain. It takes about 40 minutes from northern part of Tehran to get there, by a nice scenicy road along the Jajerud river.
It has a pleasant weather, especially in summer time when the polluted Tehran weather reaches to over 100 F in some days. Walnut, cherry, apple, apricot, berries and many other fruits are produced at Bagh Gol. In recent years, orchard gardens are changing to summer homes by non local residents rapidly.
References
Bagh Gol can be found at GEOnet Names Server, at this link, by opening the Advanced Search box, entering "-3054588" in the "Unique Feature Id" form, and clicking on "Search Database".