Grójec [ˈɡrujɛt͡s] is a town in eastern Poland, located in the Masovian Voivodeship, about 40 kilometres (25 miles) south of Warsaw.

Statistically, every third apple sold in Poland is grown in Grójec – a unique local microclimate provides for their beautiful red colour.

In September 1939, during the joint German-Soviet invasion of Poland which started World War II, the town was bombed by the Luftwaffe and afterwards captured by Germany.

[6][7][8][9] Only a group of Jewish craftsmen was left in Grójec, however, they were also annihilated in a mass execution in Dębówka, near Góra Kalwaria.

The Modrzewina forest reserve was established in 1959 on the grounds of the village of Mała Wieś in the commune of Belsk Duży to protect the northernmost site of Polish larch in the Highland, which grow in this area to a height of 40 meters and up to 120 cm in circumference.