Mount Wilson is a grand peak in the San Gabriel Mountains National Monument & Angeles National Forest. The summit is just over a mile high at 5,710 feet. From the Angeles Crest Highway, Mount Wilson Red Box Road beautifully winds up the range. Visit on a rainy day and soar above the bursting clouds. Snow is even common in the winter. This wonderland is unbelievably right above Los Angeles yet you will feel you've entered another land.