July 11 1921 [content id=”79272″] 11, 1921, blockhouse, fortress, geodetic, july, observatory, russian, sitka, torn down This Day in Alaskan History-July 11th, 1921 added by Alaska Native News on Jul 11, 2025View all posts by Alaska Native News → Related Posts:This Day in Alaskan History-June 15th, 1921This Day in Alaskan History-July 6th, 1921June 25th, 1921July 30th, 1921In Honor of All of Our Veterans on this, their Day11th Airborne Division Arctic Angels deploy to…Joint Pacific Multinational Readiness Center-Alaska…Calendar Celebrates Birds, Showcases Art and…See also Black aurora mission launches from Poker Flat