Complete the following sentence: Three boulders formed the nucleus for the monument dedicated at his Great Neck estate on June 10, 1922. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️
San Juan Hill<unk> where Col. Roosevelt led a famous charge with his Rough Riders in the Spanish-American War<unk> The final boulder from the Adirondack Mountains served as a reminder of where Roosevelt was upon being informed he would become president of the United States.<unk> The final boulder from the Adirondack Mountains served as a reminder of where Roosevelt was upon being informed he would become president of the United States.