Riot Blockchain Announces 8 MW Pilot Project to Evaluate Latest Generation Immersion Module Technology and Innovative Energy Strategies in Texas Castle Rock, Colorado, Dec. 14, 2020 (GLOBE NEWSWIRE) -- CASTLE ROCK, Colo., December 14, 2020 –  Riot Blockchain, Inc. (NASDAQ: RIOT) ("Riot" or the "Company"), one of the few Nasdaq-listed bitcoin...