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es cu uaia~_. c~cessivelt drained soils. "I'he~c lent v, ryitlJererl fl'om basalt ou relies are ;. to 2a percent. Iaeva- fect, Natural vegetation is domi- kctveed,late rnbbitbrush,Indi:ut fat. The average annual precipi- es, the mean annual air tempera- and the frost-free season is ~0 profile the surface la}er is dotrk n ;rhout :I inchea thick. The sub- terv stony lo:un ahotlt (i inc•hes u is grayish brou-n loam about t is at a depth of about 1(; inches. rrlerate, and the aeailable hater cLion is moderateh• alkaline. The th is 10 to ?0 inches. ed for range, Itildlife. and recrea- ofile of Tratelers very stony loam v's-Cv'ita complex, 5 to 25 percent tst and '1,000 feet north of the c. 39, T. 37 N., R.. 7 E. brown (10YR 5/3) eery stony loam, dark YR 3/3) moist; moderate fine granular soft, very friable; 30 percent stones, calf; calcareous; moderately alkaline; lh bouudarv. brown (lOYR v/3) very stony loam, n (lOYR 4/3) moist; moderate merlimn r blocky stn+cture parting to moderate r ar; slightly hard, very friable; 40 per- rs and cobbles: calcareous; nroderatel}• gradual wavy boundary. w; light brownish gray (10}'R 0/?) loam, ruu•n (10}'R 5/2) moist; massive; hard, 90 prrcent stones and cobbles, mostly Bible secondary calcium carbonate occur- ucrclions in thin scams and streaks and gx nn gravel fragments; strongly cal- modcrately alkaline; abrupt navy' bound- ;alt bedrock n is 2 to 5 inches thick and is very stony ny sandy loam. The R2 horizon is 4 [0 15 c loam or light clay loam. The content of s dominantly basalt stones and cobbles, i5 percent in the R and C horizons. Depth ti (rant 10 to 20 inches. Redrock is domi- [ andesite and lathe recur in some pedons. c~ilihlc loam. ~'fhe "Il~nceler.. soil h;is the profile de- ccri :~s represent:+licp. ~~f the sarie<. The ( to soil has~rol)le simil:n to the one described ns~re.<en- tatiye of the series, but slope; ;u•e :i to '?•i percent. It Decors mostlt• an font slopes uenr the bottom of hills. Included n•ith this unit in mapping :u'e steep soils that hate slopes of '?$ to 7~i percent. About 15 percent of this unit is included areas a( Luhon loam generally nt the bottom of hills or in uarrua' t:dleys, °_5 percent areas of I:ock outcrop nutstly on hilltops and at the edge of mesas, and lit percent Celeste extremely stmty loam in :u'e:rs at Lhc higher elevations. P.unolf is moderate to rapid. The haz:ud oC hater erosion is moderate. Small gullies hate formed on man>• of the steeper slopes. i}lost of the small valleys are cot by gullies ? to R feet deep :md 3 to 111 feet aide. This mapping unit is used far l.vtge and wildlife. Some areas are used for recreation, Capability unit }'Its-S nm+irrignted; Tratelers soil in Basalt Bills range site; Garita sail in Limp Bench range site. Typic Pluvaqucnts Tt-Typic Fluvaq,ecntr<are sometahat pom•ly drained or poorly drained and occ•ul>v low, nearly level flood plains along the Rio Grande and some of its ma.jm• tributaries. Stapes are 0 to 1 percent. Fluvaquents formed in alluvium more than 20 inches thick over sand and gravel. The surface layer and undet•lyittg layer range from loam to clay loam. In many places the soil material is highly stratified. There are many old stream channels and oxba+cs. Salinity is Iota to moderate. The ++•ater table is at a depth of 12 to 21 inches late in spring and in summer, but drops to 3(i to GO inches in winter. Flooding is a hazard in sprin;* tehen runoff is high from melting sno+v in the mountains. Permeability is moderate to moderately slon•, and available water capacity is mod- erate. Runoff is slots. The et•osion haz:u•d is slifiht. Typic Fluvaquents are used for irrigated meadow, irrigated small grain and alfalfa, and for range. Mead- o+vs are cut for hay or used for grazing. Vegetables and potatoes are not suited. Natural vegetation is alkali sacaton, sedges, rushes, and tyester^ tyheatgrass. Capability unit Illtr-2 irrigated, Vlw-1 nonirrigated; Salt Meadow range site.