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大邑县地处川西北高原向成都平原过渡的前沿地带,与邛崃山脉接壤,背靠龙门山,面向成都平原。北与阿坝藏族羌族自治州汶川县交界,西与雅安市芦山、宝兴县相连,西南与邛崃市相邻,东与崇州市、新津县毗邻。大邑县在大地构造上属扬子板块的西部地区,位于成都平原与龙门山的交接处,属龙门山北东向构造带东缘的一部分,彭灌大断裂呈东北一西南走向沿天车坡一西岭镇一唐王坝一线贯穿县境中部,全县整体处于构造活动带上,其地质构造极其复杂。大邑县管辖范围呈狭长形,境内地势西
Dayi County is located in the forefront of the transition from the northwestern Sichuan Plateau to the Chengdu Plain, bordering the Qionglai Mountains and back to Longmenshan, facing the Chengdu Plain. North and Aba Tibetan and Qiang Autonomous Prefecture at the junction of Wenchuan County, west and Ya’an Lushan, Baoxing County, adjacent to the southwest and Qionglai City, east and Chongzhou, Xinjin County adjacent. Dayi County in the tectonic structure of the Yangtze plate in the western region, located in the Chengdu Plain and the Longmen Shan junction, a part of the eastern edge of the Longmen Shan north-east tectonic belt, Peng irrigation fault northeast-southwest along the sky slope a Xiling Town, a Tang Wangba line through the central county, the county as a whole in the tectonic activity belt, the geological structure is extremely complex. Dayi County jurisdiction is narrow and long, within the territory of the West