Bulletin 1026, U. S. Dept. of Agriculture. 
Plate XVI. 
Fig. I. — Halligan Dam of the North Poudre System. Depth of \ l A Feet 
on the Spillway. 
a^*M!^>^ 
% 
V 
Fig. 2. — Effect of Wave Action on the Inner Slope of the Dam of North 
Poudre Reservoir No. 15. 
