R.C. Russell 3 mi. NNE Canyon, 8400 ft., Yellowstone Park, Wyo. Sept 9 1967 Out of 25 traps took 5 Microtus richardsoni, 2 Zapus + 1 Sorex sp? (2/14511). These traps were set in a area along a very small trickle of water and in a pupdige area where there is green grass & lodge. Right here is where I bumped into "Sam" bull moose that couldn't stop eating while I was setting the traps. Rained several times during night & was raining at 7 A.M. Picked up mouse traps in rain. Made 4 gopher sets near camp last night & this morning had 2 gophers. Rained off & on during morning. This is last day of collecting. Looked like it turned about right too. Many places are closing & the weather has taken a bit of a wintery turn. Tomorrow I'm going to try my hand at fishing the Madison River & then it's home.