76 NEW TRACKS IN NORTH AMERICA. 
The result of the survey from Railroad Pass to Camp Grant | 
is the following :— 
Feet above 
Miles. Tide-water. 
Summi it of Railroad P: ‘ ‘ : «. 4403 
Playa de los Pimas (conte of trough) pv B60 4,275 
Head of Aravaypa Ca: : : g252 . 448 
Eureka Spring 680 4,164 
Head of Aravaypa Cafion se Ie SSS 
Leave es Meh <os 5 es eso. 2,08 
Camp Gra eS a2: ... 215 
Totalin miles, . . . 81-93 
The Rio San Pedro enters the Rio Gila 11-55 miles f 
Camp Grant, at an elevation of 1,911 feet above the sea. 
The result of the survey from Railroad Pass, vid Nuge 
Pass up the San Pedro to Camp Grant (the route travelled 
our wagons), is the following = — 
Miles. Elevations. 
Summit of Railroad Pass < ‘ ‘ é a ah 411 
Foot of dee io of Hailroad Pass . . : « 68 206 
st of Calitro Mountains . ee ee 
Sammnit of pass = throaph Calitro Mountains . 1071 . 4,740 
Mouth of cafion, Nugent’s Pass $ 7 200 ade 
aaa of Rio San Pedro f ns : * «S600 
rn to ELS: 3 ee 
A ay a Camp Grant caer g a ie 
From as ae poe to “one Grant vid 
Nugen - 106°5 
Average fall of the Rio San Pedro per mile 20-4 feet. 
Colton and a small escort of otis came with me to Cal 
Grant. The second evening after our arrival the soldi¢ 
gave one of their fortnightly theatrical ent 
tainments, which savoured much of ni 
minstrelsy and burlesque Italian opera singing ; and the: 
day after this pleasurable excitement, Colton and I bade g 
bye to the officers and the one lady who were residiag 
and directed our course southward. 
Nov. 28. 
