In this paper, we introduce the resources that we developed for Turkish\ndependency parsing, which include a novel manually annotated treebank (BOUN\nTreebank), along with the guidelines we adopted, and a new annotation tool\n(BoAT). The manual annotation process we employed was shaped and implemented by\na team of four linguists and five Natural Language Processing (NLP)\nspecialists. Decisions regarding the annotation of the BOUN Treebank were made\nin line with the Universal Dependencies (UD) framework as well as our recent\nefforts for unifying the Turkish UD treebanks through manual re-annotation. To\nthe best of our knowledge, BOUN Treebank is the largest Turkish treebank. It\ncontains a total of 9,761 sentences from various topics including biographical\ntexts, national newspapers, instructional texts, popular culture articles, and\nessays. In addition, we report the parsing results of a state-of-the-art\ndependency parser obtained over the BOUN Treebank as well as two other\ntreebanks in Turkish. Our results demonstrate that the unification of the\nTurkish annotation scheme and the introduction of a more comprehensive treebank\nlead to improved performance with regard to dependency parsing.\n