72 Forest Club Annual 



die of October the two Guards left the party and the three Graz- 

 ing Examiners again reported for work on the Coconino, having 

 been forced to discontinue operations in their respective Dis- 

 tricts on account of snow. The party continued the field work 

 until the last of November. 



The methods employed in the work on the Coconino National 

 Forest were similar to those outlined by Arthur W. Sampson in 

 Volume IV of this publication. 



Because of valuable forest and forage growth and because 

 of the importance of the stock industry, the Coconino National 

 Forest was an ideal place on which to start the work. Its for- 

 ests of almost pure stands of Western Yellow Pine on the higher 

 portions and of Juniper and Pinon at lower elevations, support- 

 ing a great amount of forage, are not only valuable for water- 

 shed protection, but also yield an annual income of about 117,- 

 000 dollars from timber sales. Its forage plants not only serve 

 as a blanket against soil erosion, but they also furnish a large 

 part of the feed for approximately 130,000 head of cattle, horses 

 and sheep annually, thereby furnishing an annual income of 

 about 21,000 dollars in grazing fees. 



The work of grazing reconnaissance essentially consists of 

 three parts ; the making of accurate maps, a concise descriptive 

 report to accompany each map, and a complete plant collection 

 of all the species on the forest. The data for the map and des- 

 criptive report were secured as follows : 



FIELD WORK. 



The maps of the area which had previously been covered by 

 timber reconnaissance were examined in the office before field 

 work started, and the topography and cultural features were 

 copied, on blank Forms 764, from the permanent timber recon- 

 naissance maps. When these sections were examined this topog- 

 raphy and the cultural features were checked. If the area had 

 not previously been examined, aneroids were carried and hun- 

 dred foot contours were sketched in. Streams and such cultural 

 features as roads, main trails, fences, cabins, corrals, watering 

 places of all kinds, and telephone lines, were located on this map. 

 In addition the types and subtypes were accurately mapped. Any 

 type or subtype occupying ten acres or more was mapped sep- 

 arately, if it occupied less than ten acres it was not shown as a 

 separate type but was written up with the type in which it 

 occurred. 



