Rental Cabin Winter Photos - Winters in Green Valley Lake are Wonderfull. At over 7,200 there is more snow for longer in Green Valley Lake than any other community in the San Barnardino Mountains. With two fire places and central heating you can enjoy being in the snow but retreating into a warm house. As you can see there can be so much snow that all the streets are covered. Before every rental guest arrives the driveway is cleared. Roads are also cleared regulary.