Question: How many acres is the Horse Range that was established by Congress in Bighorn Canyon National Recreation Area?
Sentence (from "Hells Canyon National Recreation Area"): The recreation area, which is managed by the United States Forest Service as part of the Wallowa-Whitman National Forest, was established by U.S. Congress in 1975 to protect the historic and archaeological values of the Hells Canyon area and the area of the Snake River between Hells Canyon Dam and the Oregon-Washington border.
Relevant evidence: No