กระแส, แม่น้ำ, ป่า, ห้วย, น้ำ, ต้นไม้, สิ่งแวดล้อม, ธรรมชาติ, ความเป็นป่า
Public Domain
ภาพถ่ายปลอดค่าลิขสิทธิ์ที่เกี่ยวข้อง
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