0001130464-02-000043 425 1 20021202 BLACK HILLS CORP /SD/ 0001130464 4911 460458824 SD 1231 425 34 001-31303 02846167 625 9TH STREET PO BOX 1400 RAPID CITY SD 57709 6057212343 625 9TH STREET PO BOX 1400 RAPID SD 57709 BLACK HILLS HOLDING CORP 20001222 BLACK HILLS CORP /SD/ 0001130464 4911 460458824 SD 1231 425 625 9TH STREET PO BOX 1400 RAPID CITY SD 57709 6057212343 625 9TH STREET PO BOX 1400 RAPID SD 57709 BLACK HILLS HOLDING CORP 20001222 425 1 form425_mallonmerge12-02.txt FORM 425 BHC & MALLON S-4 FILING TO MERGE