Original sentence: The San Gabriel Mountains were first preserved by the federal government in 1892 as the San Gabriel Timberland Reserve, established by U.The San Gabriel Wilderness is a wilderness area created in 1968 of more than 36,118 acres (150 km2) within the Angeles National Forest and San Gabriel Mountains National Monument.This forest reserve would later become part of the Angeles National Forest in which the San Gabriel Wilderness is now located
Edited sentence: The San Gabriel Wilderness is a wilderness area created in 1968 of more than 36,118 acres (150 km2) within the Angeles National Forest and San Gabriel Mountains National Monument, but this journey of the San Gabriel Mountains being preserved by the first federal government in 1891 as the San Gabriel Timberland Reserve, established by our 23rd U