Snow

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.

Photo of fenced snowy field along gravel or dirt road near Snowville, Utah, which is near the Montana border. Back of the photo reads, "Only snow remaining is on bare ground - prepared for fall wheat - no snow on stubble fields. Taken near Snowville notch on 3/16/31."

Documentation for a snow study by Lyle Watts in a national forest in Idaho. Snow has receded in the open areas. Back of photo reads, "4/20/31 2/30PM - SR3-3rd of series Stop 16 T1/5s.-Verichrome."

Documentation for snow survey by Lyle Watts at Rubicon, Idaho. Back of photo reads, "Rubicon Snow Picture 4/19/31. note - Snow in [illegible] and none in open - There was absolutely no snow left except in such places as this dale."

Documentation for a snow study by Lyle Watts in a national forest in Idaho showing that most of the snow has melted. The back of the photo reads, "4/20/31 - SR - 5.-Snow banks remain only on N Side of trees. Bright Sun S16 -T1/10 direction E Vericrome [sic.] film 4PM."

Documentation for a snow study by Lyle Watts in a national forest in Idaho showing nearly all the snow has melted in this part of the forest. The back of the photo reads, " From Corner #2 - SR-3. 3rd of series. 4/20/31 - 3PM. Bright Sun. S-16-T1/5 Face - West."

Forest Documentation by Lyle Watts for a survey study probably on the Montana-Idaho border at Rock Flat showing a closeup of a snow covered sage. He uses a pencil to point to what he is showing in the snow. Back of photo reads, "4/8/31 - 215PM Bright Sun 8-1/100 - Sage - Snow melting - Just tip of sage shows above snow melt granulated snow & honeycomb agoung sage."

Forest documentation by Lyle Watts in hazy sun at 11:00 A.M. for a survey study probably on the Montana-Idaho border at Rock Flat showing snow at the base of several trees and among undergrowth. This is the same site photographed in photo 2009-2917. The back of the photo reads, "4/2/31-11A. 16-1/25s. West. Hazy sun."

Forest documentation by Lyle Watts at 11:A.M. in the first of a series for a survey study probably on the Montana-Idaho border at Rock Flat showing snow at the base of several trees and undergrowth. This is the same site as photo 2009-2016 but with different shutter speed. The back of the photo reads, " 4/2/31 - 11 A.M. 8-1/50s SR -3- 1st of series from this location. MY Private Reprod."