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Table 6. Tabulated Angles of Draw for Coal Mining in the United States and Europe <br />Country or District Brauner Wardell Newhall and Plein Pendleton Collins <br />(1973, p. 9) (1959, p. 530) (1934, p. 65) (1985) (1977) <br />Netherlands------- 35°-45° 35°-45° --------- -------- -------- <br />Ruhr----------------- 30°-45° --------- --------- -------- -------- <br />Lower Rhine------ ---------- <br />France-------------- 35° <br />Great Britain------ 25°-35° <br />Poland-------------- ---------- <br />Pennsylvania----- 20° <br />South Wales------ ---------- <br />Colorado----------- ---------- <br />29°-39° <br />28°-40° <br />19°-34° <br />20°-25° <br />C-18 <br />21° <br />32°-40° <br />DBMS 310 <br />