Original: In 1982, President Ronald Reagan and the U.S. Congress established the Mount St. Helens National Volcanic Monument, a 110000 a area around the mountain and within the Gifford Pinchot National Forest.
Simplified: In 1982, U.S. President Ronald Reagan and the United States Congress made the Mount St. Helens National Volcanic Monument, a 110,000 acre (445 kmÂ) area around the volcano that is also a part of the Gifford Pinchot National Forest.