山西吉县：黄河壶口瀑布现冰挂流凌景观

Group 1 - The article highlights the scenic beauty of the Yellow River Hukou Waterfall, showcasing ice formations and frozen landscapes during winter [1][2][3] - It mentions specific dates and locations for the photographs taken, emphasizing the unique natural phenomena observed at the site [1][2][3] - The presence of ice and frozen features, such as ice-hanging and ice rainbow, indicates significant weather conditions affecting the region [1][3]