贵州山区裸露式煤田的基本特点是:山高谷深,露头良好。地质构造现象大多暴露地表,便于直接观测。煤层出露程度虽不及岩层,但复盖物一般较薄,多数地段用槽、井探、浅钻等轻型工程可以揭露。尤其是发育较好的煤层,小窑数量众多,对了解煤层厚 The basic characteristics of the exposed mountainous coalfield in Guizhou are: high mountain valleys and good outcrops. Most of the geological tectonics exposed surface, easy to direct observation. Although the coal seam is less exposed than the rock formation, the covering is generally thinner, and most of the lots can be exposed with light engineering such as trenching, well exploration and shallow drilling. Especially the development of better coal, a large number of small kiln, to understand the thick seam