Lyle Watts

Documentation for a Snow Study in Idaho by Lyle Watts. Similar to 2009-2943.

Documentation of a snow study by Lyle Watts showing the snow receding. Back of the photo reads, "Idaho SR-3-about April 30. Snow on north side of trees near Grandstand."

Documentation for a snow study by Lyle Watts in a national forest in Idaho. Back of the photo reads, "4/20/31 - 2 PM - Verichrome Stop 16 Time 1/25 - Bright Sun Same as #7." #7is a numbering system Mr. Watts used on some of his photos. This is nearly the same as photo 2009-2936. The sticks in the center of the two places where the snow has melted may be yardsticks or something similar to show the amount of melting that had taken place.

Forest Documentation by Lyle Watts for a survey study probably on the Montana-Idaho border at Rock Flat showing an area of the forest where snow is melting. Back of the photo reads, "4/8/31 245pm Stop - 8 - Time 1/15 SR3 Corner 2 - Same as 7-8 on 4/2/31." His reference to "7-8" refers to his own numbering which occurs on some of his photos. This photo shows the same area as photo 2009-2918 taken six days earlier.

Forest documentation by Lyle Watts for a survey study, possibly on the Montana border at Rock Flat. The back of the photo reads, " 4PM - 4/8/31 Stop 8 - Shutter 1/6 - Hazy sun. Effect of OM Yellow Pine on snow cover."

Snow survey at Bear Basin, possibly near McCall, Idaho. Back of the photo reads, "Bear Basin Snow Survey Course 16 - 1/10 Face North Dull Sun 4:30pm 4/2/31."

Forest Documentation by Lyle Watts for a survey study probably on the Montana-Idaho border at Rock Flat showing a snow covered opening between the trees in the forest. The back of the photo reads, "SR - 3 one of series Hazy sun 4/8/31 240PM 5.6 - 1/25 sec."

Forester identified only as "C.A.C." at Bear Bason Course, possibly near McCall, Idaho.

Documentation for a snow study by Lyle Watts showing a forest with most of the snow melted. Back of the photo reads, "4/28/31 - 10AM MC -2- Idaho From P-1-Face SW Joins picture #12 - S-16-T.1/10 Bright Sun." "Picture #12" in Mr. Watts numbering is Photo 2009-2940.

Documentation for a snow study by Lyle Watts in a national forest in Idaho showing two patches of melted snow. Each has a stick lying horizontally across it. This are possibly yardsticks to show the amount of snow melt that has taken place. The back of the photo reads, " 4/29/31 - 2.00 PM Stop. 5.6 Time 1/150s - East. Verichrome - Bright sun Snow - Dirt. Temperatures. Snow Recession Study." This photo is similar to 2009-2935.