Sustainable reclamation practices for large surface coal mines in USA semiarid environment contribute to the quality of the environmental on a long term basis where environmental resources are protected for future generation. Land, after reclamation, must be suitable for the previous use of greatest economic or social values to the community area. In the semiarid climate of USA, non-developed land is mainly utilized for crops, grazing, and wildlife. Completion of various stages of the reclamation processes includes verification and approval of reclamation criteria and performance standards created by state agencies. The sustainable reclamation practices were investigated at the USA’s largest surface coal mine of the semiarid environment in Wyoming. These practices include building post-mining topography to the approximate original contour and reestablish a stable hydrologic system to drain surface water. All available spoil material is backfilled and graded to achieve the post-mining topography which closely resembles the pre-mining topography. No overburden material or other coal waste material is left in stockpiles at the mine. Detailed planning until the end of mining, the knowledge of available volumes of suitable backfill material and soil is necessary for sustainable management practices. Diverse and permanent vegetation capable of stabilizing soil surfaces and capable of self-regeneration is established. Sustainable management of the reclamation effort is achieved by enforcement processes developed by the state and federal agencies. Monthly inspections of mining and reclamation operations and reviews of annual reports submitted by the operator help determine if the reclamation processes are occurring according to the permit plan.

美国半干旱环境中大型露天煤矿的可持续复垦实践有助于长期改善环境质量，保护环境资源以供后代使用。开垦后的土地必须适合先前对社区区域具有最大经济或社会价值的用途。在美国半干旱气候下，未开发的土地主要用于种植庄稼、放牧和野生动物。完成回收过程的各个阶段包括验证和批准由国家机构制定的回收标准和性能标准。在美国最大的怀俄明州半干旱环境露天煤矿对可持续复垦做法进行了调查。这些做法包括将采矿后地形建设成近似原始轮廓，并重建稳定的水文系统以排出地表水。所有可用的弃土材料都被回填和分级以达到与采矿前地形非常相似的采矿后地形。没有覆盖材料或其他煤炭废料留在矿场的库存中。在采矿结束之前进行详细规划，了解可用的合适回填材料和土壤量对于可持续管理实践是必要的。建立了能够稳定土壤表面并能够自我更新的多样化和永久性植被。通过州和联邦机构制定的执法程序来实现对填海工作的可持续管理。