University of Vallladolid Gea-Ecohidraulica Gea-Ecohidraulica is a research group which works in fishways desing and assessment for more than 20 years. Website Current Events Upcoming Events Past Events There are currently no events. There are currently no events. 31 May 31 May - 31 May Burgos: fish friendly city 2022-05-31 @ 10:30 (GMT+0000) - 2022-05-31 @ 14:00 (GMT+0000) Azud los Trampones, frente al campo de fútbol El Plantío Site visit (river, fishway, clean-up)