Field Trips 3 1/2 to 5 1/2 miles South East of Pocatello. Oct. 1.- 2.- 1931. Thursday Oct 1, I went from Pocatello on the bunch road (south west side) of the Portneuf River to a point only 3 1/2 miles south east of Pocatello and placed 15^ gopher traps in alfalfa fields on river bottom land. This cultivated area is only about 1/2 mile wide and supplied with irrigation water from Mink creek, 2 miles farther up the Portneuf River. Many fresh gopher workings were noted in the irrigated fields below the irrigation ditch. I went on and took the road up Mink creek about to a point one mile south of the junction of Mink Creek and Portneuf River and one mile north of the Richmond farm location where J. tridgeri had been taken. 5 traps were set in a peach orchard 30 yards from the creek. One specimen taken here - Cat. No. 521- ♀.