. Bull Mountains coal field study : progress report, 1975 : research conducted by Montana Department of Fish and Game, Environment and Information Division, and Consolidation Coal Company. Coal mines and mining; Animal ecology; Wildlife management. Seasonal movements of elk (1) and (2) are shown in Figures 5 and 6, respectively. The mean consecutive distances between observations of the two animals combined were , , and miles during spring, summer, fall and winter, respectively. Martinka (1969) reported mean consecutive distances of and miles during early and late summer,
. Bull Mountains coal field study : progress report, 1975 : research conducted by Montana Department of Fish and Game, Environment and Information Division, and Consolidation Coal Company. Coal mines and mining; Animal ecology; Wildlife management. Seasonal movements of elk (1) and (2) are shown in Figures 5 and 6, respectively. The mean consecutive distances between observations of the two animals combined were , , and miles during spring, summer, fall and winter, respectively. Martinka (1969) reported mean consecutive distances of and miles during early and late summer, respectively, cows in the Jackson Hole area. Mean maximum distances between for the same two animals were , and miles during and winter, respectively. Elk (1) moved 5 miles from morning for resident observations summer, fall summer, iqii giw nmwii i &»j«.*.~. »-.,*â > . iq7c to evening when observations were made one day during January iy/D. Home ranges for elk (1) and (2) were calculated in the same manner as those for mule deer. Annual home ranges for the two cows were and square miles, respectively. Both spent the late spring summer and fall of 1974 in the upper Hawk Creek drainage, and the winter in the Fattig Creek and Railroad Creek drainages (Figures 5 and 6) This pattern cor- responded closely to the seasonal pattern illustrated In Figure 4 which included all observations of elk during the report period The respect ve Dortions used by the two cows during the summer-fall period included /.I and 7 7 square miles, while those used during the winter-spring period were and square miles, respectively. It is the writer's opinion that at least two separate and distinct summer ranqes occur (Figure 4), and perhaps each was used by separate segments of the population. As indicated through sightings of the seven marked cows during winter 1975, a portion of the total area used by all elk during the winter-spring period may be shared by
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