... products (Bucheim et al., 198 5; Ciesla et al., 198 9; Joria et al., 199 1; Brockhaus et al., 199 2, 199 3; Franklin, 198 9; Franklin and Raske, 199 4; Franklin et al., 199 5b). Only a few of the availablestudies ... However, visual interpretation is atime-consuming and labor-intensive method for large-area mapping (Sader, 199 5).Using six Landsat satellite images of a 1.2-million-hectare area in the centralOregon ... but more likely, as in other remote sensing applications, users experienced difficulty in interpreting the data (Wickwareand Howarth, 198 1; Singh, 198 9; Coppin and Bauer, 199 6). As new satellite...