much better than from Boulder to Greeley . Occasional pass over hills covered with water worn debris from the mountains just like the mesa caps near Boulder , but not flat. Intermittent channels are also strewn with boulders and gravel and the soil generally sandy but hard. Saw plover with young, doves , horned larks , meadow larks , burrowing owls and lark buntings . At 1 p.m. we arrived at Spee’s homestead a mile west of where Eastman’s Reservoir is placed on our map and were informed that the reservoir is fully 7 miles further east, so we cut it out and started up Owl Creek for Slayton’s Ranch , that also being incorrectly mapped as being on Eastman Creek . Collected Physa at ranch 2 miles S of Slayton’s and reached Slayton’s at 6 p.m.