GWC Brochure and Map Mar 2, 2017 Save paper! Download our GWC brochure! Learn more about our watershed from our WATERSHED MAP which shows our major issues. Download our Gallinas Watershed Brochure. Download the GWC Watershed Issues Map Gallinas Watershed Issues Map Submit a Comment Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Δ This site uses Akismet to reduce spam. Learn how your comment data is processed.