Historic, archived document Do not assume content reflects current scientific knowledge, policies, or practices. A99.9 F764Ub FOREST AREA AND TIMBER RESOURCE STATISTICS FOR SAN MIGUEL COUNTY, NEW MEXICO, 1975 MICHAEL K. BARRETT and DOROTHY G. SHUPE USDA Forest Service Resource Bulletin INT-17 INTERMOUNTAIN FOREST AND RANGE EXPERIMENT STATION FOREST SERVICE, U.S. DEPARTMENT OF AGRICULTURE USDA Forest Service Resource Bulletin INT-17 April 1980 FOREST AREA AND TIMBER RESOURCE STATISTICS FOR SAN MIGUEL COUNTY, NEW MEXICO, 1975 Michael K. Barrett and Dorothy G. Shupe INTERMOUNTAIN FOREST AND RANGE EXPERIMENT STATION Forest Service U.S. Department of Agriculture Ogden, Utah 84401 THE AUTHORS MICHAEL K. BARRETT, formerly Statistical Assistant with the Resources Evaluation research work unit at the Intermountain Forest and Range Experiment Station, Ogden, Utah, is now Contract Price Analyst with the Navy Department in Salt Lake City, Utah. DOROTHY G. SHUPE is a Supervisory Statistical Assistant with the Resources Evaluation research work unit at the Intermountain Forest and Range Experiment Station in Ogden, Utah. RESEARCH SUMMARY Presents land area, commercial timberland area, timber inven- tory, and growth and mortality data based on Resources Evaluation standards. INTRODUCTION . . HEGHUEGHIS: isos) feo Meee GS YG 6 Inventory CONTENTS Growth and Hortaliey : DATA RELIABILITY . TERMINOLOGY AND DATA TABLES. TERMINOLOGY. . .. Land. Water... Land Use eee Public Ownership Passes, Private Ownership Classes Forest Type and Tree Species. Area Condition Classes. Class of Timber Tree Size Classes Volume. 2. . 5 « Growth and Mortality. . Sites we oes Stand-Size Glasses. FOREST SURVEY TABLES ° Page DDD AADNAAAUNUNUM Ne} San Miguel County INTRODUCTION A comprehensive timber resource study was conducted on State and private lands in San Miguel County, New Mexico (fig. 1), from 1974 to 1975 by the New Mexico Department of State Forestry in cooperation with the Division of State and Private Forestry, Forest Service, Region 3, and the Intermountain Forest and Range Experiment Station. The total land area in San Miguel County is 3,034,432 acres (1,227,996 hectares). The Forest Service manages 339,018 acres (137,196 hectares) and the Bureau of Land Management 46,488 acres (18,813 hectares). The remaining 2,648,926 acres (1,071,987 hectares) are in State, private, and other ownership. The data presented here are for State, private, and other lands (miscellaneous Federal, and County and municipal lands). Highlights show the area of commercial timberland in comparison to total forest land area, and the distribution of this area by forest type, stand-size class, and site class. Discussions of the data reliability and terminology are included. These two items should be reviewed carefully when using this information. ODTXd;{ MON £AZUNOD ToNsT){i ueS--*], saIN3Ty 601 a OYHOOOS NOYLVS os 08 on oz fo) = re ee SITINW ILNLVLS-IWIS adNnivavnys OTNINWNY3Aa a4 VLNVS VIONA TVA ax a SOWVIV SO TWAOGNVS XVI100 VaIYduV Old NVA NVS ODIXIW MIN N HIGHLIGHTS Area @ The forest land area is 885,815 acres (358,478 hectares), or 33 percent of the total State and private land area in the County. e Of the forest land, 77,682 acres (31,437 hectares), or 9 percent are classified as commercial timberland. e Private ownership accounts for 75,436 acres (30,528 hectares), or 97 percent of the commercial timberland. e The predominant forest type is ponderosa pine, which occupies 71 percent of the commercial timberland. The remaining area consists of Douglas-fir, white fir, pinyon-juniper!, limber pine, and aspen forest types. @ Seventy-two percent of the commercial timberland is sawtimber stands; pole- timber stands occupy 18 percent; the remaining 10 percent is in sapling and seedling stands or nonstocked. @ Nearly 70 percent of the commercial timberland is in the 20 to 49 cubic-foot productivity class. Inventory @® Growing stock volume amounts to 64,396 thousand cubic feet (1,823 thousand cubic meters) with the major portion, about 70 percent, in softwood sawtimber trees. @ Rough, rotten, and salvable dead trees comprised 1,901 thousand cubic feet (54 thousand cubic meters), or about 3 percent, of the total sound wood volume. @ About 90 percent of the 217,838 thousand board feet? of sawtimber volume is in sawtimber less than 21 inches d.b.h. @ Ponderosa pine and Douglas-fir together make up about 76 percent of the growing stock volume and 79 percent of the sawtimber volume. Species sharing the remaining percentage are white fir, limber pine, Engelmann spruce, subalpine fir, pinyon pine, juniper; aspen and other hardwoods. Pinyon and juniper account for less than two-tenths of 1 percent of the total growing stock volume. Six percent of this pinyon and juniper volume is in State ownership. e About 97 percent of both the total growing stock volume and the total saw- timber volume is privately owned. 1The area occupied by pinyon-juniper forest type classified as conmercial is so classified because the site index for other associated species on these stands (usually ponderosa pine or Douglas-fir) was high enough to indicate a site potential productivity level exceeding 20 cubic feet per acre per year average annual growth, and nonstockable indicators were not present in sufficient quantities to lower the yield capability below 20 cubic feet per acre per year. Although pinyon/juniper usually occurs on unproductive forest land, when it occurs in mixtures with other species on productive sites, it is reported in the commercial timberland statistics. 2International 1/4-inch rule. Growth and Mortality @® Net annual growth of growing stock totals 1,943,218 cubic feet (55,026 cubic meters) with 86 percent occurring in softwood species; mainly ponderosa pine, Douglas-fir, and white fir. Growth and mortality were not measured for pinyon and juniper trees. @ Almost 98 percent of the total net growth is on private land. @ The annual mortality of 273,179 cubic feet (7,736 cubic meters) offsets 12 percent of the gross annual growth. ® Fire causes 76 percent of the mortality. Weather, disease, suppression, and other unknown factors account for the remainder. @ Nearly 97 percent of the mortality occurs on private lands. @ Nearly 70 percent of the mortality occurs in ponderosa pine. @ Although hardwoods make up only about 7 percent of the total growing stock volume, they account for over 9 percent of the mortality. DATA RELIABILITY Individual cells within tables should be used with caution. Some are based on very small sample sizes, and so result in high sampling errors. The standard error percents shown in tables 1 and 2 were calculated at the 67 percent confidence level. Table 1.--Area of forest land and percent standard error for San Miguel County, 19765 ; Softwood types :___ Hardwood types : All types Tei : Percent: : Percent: : Percent Acres :standard: Acres :Sstandard: Acres :standard error : o) errors: : error Commercial timberland 76,581 Tese: LO: 46.1 77,682 ine, Other forest land: Unproductive reserved 15.705 2 Sal -- 0 L403 255.4 Unproductive nonreserved 785,276 10.7 21,094 15.7 806,370 10.4 Table 2.--Net volwne and net annual growth and annual mortality of growing stock and sawtimber on commeretal timberland, with percent standard error for San Miguel County, 19765 F Softwoods : Hardwoods : All_ species It : Percent: : Percent: : Percent oC Volume :standard: Volume’ :standard: Volume :standard error : = error: ae Chadehs Net volume: Growing stock (M cubic feet) 60,047 9.1 4,349 S255 64,396 9.6 Sawtimber (M board feet) 20 74a 10,2 6,097 48.6 217,838 10.4 Net annual growth: Growing stock (cubic feet) 1,667,155 14.8 276,065 ESE 1,943,218 sya al Sawtimber (board feet!) 6,886,629 16.4 153,820 7100.0 7,040.449 16s7 Annual mortality: Growing stock (cubic feet) 247,597 Ale) 25,582 THES 273,51 79 64.7 Sawtimber (board feet!) 1,077,008 T2395 141,805 Tie WS 2185815 64.6 linternational 1/4-inch rule. *Computed standard error exceeds 100 percent. TERMINOLOGY AND DATA TABLES The following terminology section contains definitions that are relevant to the timber resource data presented in this resource bulletin. Forest area and timber resource data for San Miguel County, New Mexico, are displayed in tables 3 through 23. TERMINOLOGY Land Bureau of the Census.--The area of dry land and land temporarily or partly covered by water, such as marshes, swamps, and river flood plains; streams, sloughs, estuaries, and canals less than 1/8 of a statute mile in width; and lakes, reservoirs, and ponds less than 40 acres in area. Water Census water.--As defined by the Bureau of the Census, streams, sloughs, estuaries, and canals more than 1/8 of a statute mile in width; and lakes, reservoirs, and ponds more than 40 acres in area. Noncensus water.--The same as defined by the Bureau of the Census, except minimum width of streams, etc., is 120 feet and minimum size of lakes, etc., is 1 acre. Land Use Classes Forest land.--Land at least 16.7 percent stocked by forest trees of any size, or formerly having had such tree cover, and not currently developed for nonforest use. Commercial timberland.--Forest land producing or capable of producing crops of industrial wood and not withdrawn from timber utilization. (Note: Areas qualifying have the capability of producing in excess of 20 cubic feet per acre per year of indus- trial wood management. Currently inaccessible and inoperable areas are included, except when the areas involved are small and unlikely to become suitable for production of industrial wood in the foreseeable future.) Productive-reserved forest land.--Forest land sufficiently productive to qualify as commercial timberland, but withdrawn from timber utilization through statute, administrative designation, or exclusive use for Christmas tree production. Other forest land.--(1) Forest land incapable of producing 20 cubic feet per acre of industrial wood under management, because of adverse site conditions; (2) unproductive- reserved forest land. Nonforest land.--Land that has never supported forests and lands formerly forested where use for timber management is precluded by development for other use. Public Ownership Classes National Forest land.--Federal lands legally designated as National Forest or purchase units, and other lands under the administration of the Forest Service, including experimental areas and Bankhead-Jones Title III lands. Bureau of Land Management lands.--Federal lands administered by the Bureau of Land Management. Indian lands.--Tribal lands held in fee by the Federal Government, but administered for Indian tribal groups and Indian trust allotments. 5 State lands.--Lands owned by States, or lands leased to these governmental units for 50 years or more. Private Ownership Classes County and municipal lands.--Lands owned by counties and local public agencies or municipalities, or lands leased to these governmental units for 50 years or more. Forest industry lands.--Lands owned by companies or individuals operating wood- using plants. Farmer-owned lands.--Lands owned by farm operators. (Note: These exclude lands leased by farm operators from nonfarm owners, such as railroad companies and States.) Miscellaneous Federal lands.--Federal lands other than the following: (1) National Forest lands; (2) lands administered by the Bureau of Land Management; and (3) Indian lands. Miscellaneous private lands.--Privately owned lands other than forest industry and farmer-owned lands. Forest Type and Tree Species Forest types.--A classification of forest land based upon the species forming a plurality of live-tree stocking. Forest trees.--Woody plants having a well-developed stem and usually more than 12 feet in height at maturity. Commercial species.--Tree species presently or prospectively suitable for indus- trial wood products. Softwoods.--Coniferous trees, usually evergreen, having needles or scalelike leaves. Hardwoods.--Dicotyledonous trees, usually broad-leaved and deciduous. Area Condition Classes Stocking.--Stocking is an effort to express the extent to which growing space is effectively utilized by present or potential growing stock trees of commercial species: "Percent of stocking" is synonymous with ''percentage of growing space occupied" and means the ratio of actual stocking to full stocking for comparable sites and stands. Basal area is used as a basis for measuring stocking. "Stocking percentages" express current area occupancy in relation to specified standards for full stocking based on number, size, and spacing of trees considered necessary to fully utilize the forest land. Full utilization of the site is assumed to occur over a range of basal area. As an interim guide, 60 percent of the normal yield table values has been used to establish the lower limit of the range which represents full-site occupancy. This is called 100-percent stocking. The upper limit of full stocking has been set at 132 percent. Sites with less than 100-percent stocking represent understocking with less than full-size occupancy. Overstocking is characterized by sites with over 133-percent stocking. Class 10.--Area fully stocked (100-132 percent) with desirable trees and not overstocked (133 percent or more). Class 20.--Area fully stocked with desirable trees, but overstocked with all live trees: Class 30.--Areas medium to fully stocked (60-99 percent) with desirable trees and with less than 30 percent of the area controlled by other trees and (or) inhibiting vegetation or surface conditions that will prevent occupancy by desirable trees. Class 40.--Areas medium to fully stocked with desirable trees and with 30 percent or more of the area controlled by other trees and (or) conditions that ordinarily prevent occupancy by desirable trees. Class 50.--Areas poorly stocked (16.7-59 percent) with desirable trees, but fully stocked with growing stock trees. Class 60.--Areas poorly stocked with desirable trees, but with medium to full stocking of growing stock trees. Class 70.--Areas nonstocked (less than 16.7 percent) or poorly stocked with desirable trees, and poorly stocked with growing stock trees. Class 80.--Low-risk old-growth stands. Class 90.--High-risk old-growth stands. Nonstocked.--Areas less than 16.7 percent stocked with growing stock trees. Class of Timber Growing stock trees.--Live trees of commercial species qualifying as desirable or acceptable trees. (Note: Excludes rough, rotten, and dead trees.) Desirable trees.--Growing stock trees (a) having no serious defect in quality limiting present or prospective use for timber products; (b) of relatively high vigor; and (c) containing no pathogens that may result in death or serious deterioration before rotation age. Acceptable trees.--Growing stock trees that meet specified standards of size and quality, but not qualifying as desirable trees. Rough trees.--(1) Live trees of commercial species that do not contain at least one 12-foot saw log or two noncontiguous saw logs, each 8 feet long or longer, now or prospectively, and (or) do not meet Rocky Mountain Regional specifications for freedom from defect primarily because of roughness or poor form; (2) all live trees of non- commercial species. Rotten trees.--Live trees that do not contain at least one 12-foot saw log or two noncontiguous saw logs, each 8 feet long or longer, now or prospectively, and (or) do not meet Rocky Mountain Regional specifications for freedom from defect primarily because of rot; that is, when more than 50 percent of the cull volume (cubic-foot basis) in a tree is rotten. Cull.--Portions of a tree that are unusable for industrial wood products because of rot, form, or other defect. Salvable dead trees.--Standing or down dead trees that are considered merchantable by Rocky Mountain Regional standards. Mortality trees.--Trees formerly growing stock dying from natural causes during a specified period, usually 1 year. Saw-log portion.--That part of the bole of sawtimber trees between the stump and the saw-log top. A 1-foot stump is used. Upper-stem-portion.--That part of the bole of sawtimber trees above the saw-log top to a minimum top diameter of 4.0 inches outside bark or to the point where the central stem breaks into limbs, whichever occurs first. Tree Size Classes Seedlings.—--Live trees Tess than 120 inch in’-diameter at breast height. saplings.--Trees 1.0-4.9 inches 1n diameter at breast height. Poletimber trees.--Trees at least 5.0 inches in d.b.h., but smaller than sawtimber size. Sawtimber trees.--Trees exceeding poletimber size. In the Intermountain States, the minimum d.b.h. for softwood sawtimber is 9.0 inches, and 11.0 inches for hardwoods. Volume Net volume.--Gross volume less deductions for rot, sweep, or other defect affect- ing use for timber products. Growing stock volume.--Net volume in cubic feet of live sawtimber trees and live poletimber trees from stump to a minimum 4.0-inch top (of central stem) outside bark. Net volume equals gross volume less deduction for rot and missing bole sections. Sawtimber volume.--Net volume in board feet of sawtimber trees of commercial species. Net volume equals gross volume less deduction for rot, sweep, crook, and other defects that affect use for lumber. Growth and Mortality Net annual growth.--The increase in net growing stock volume of a specified size class for a specific year. (Note: Components of net annual growth include the increment in net volume of trees at the beginning of the specific year surviving to its end, plus net volume of trees reaching the size class during the year, minus the net volume of trees that died during the year, minus the net volume of trees that became rough or rotten trees during the year.) Mortality.--Number or sound-wood volume of growing stock trees dying from natural causes during a specified period. Site Site class.--A classification of forest land in terms of inherent capacity to grow crops of industrial wood. Site classifications are based upon the mean net annual growth of growing stock (not including thinnings or mortality loss) attainable at culmination of mean net annual growth over age. Height-age relationships are usually used as indicators of the specified volume-site class. Stand-Size Classes Sawtimber stands.--Stands at least 16.7 percent stocked with growing stock trees, with half or more of total stocking in sawtimber or poletimber trees, and with sawtimber stocking at least equal to poletimber stocking. 8 Poletimber stands.--Stands at least 16.7 percent stocked with growing stock trees in which half or more of this stocking is in poletimber and (or) sawtimber trees, and with poletimber stocking exceeding that of sawtimber. Sapling-seedling stands.--Stands at least 16.7 percent stocked with growing stock trees in which more than half of the stocking is saplings and (or) seedlings. Nonstocked land.--Commercial timberland less than 16.7 percent stocked with growing stock trees. FOREST SURVEY TABLES Table 3.--Zotal area in San Miguel County by ownership class, 1975 Ownership class National Forest Bureau of Land Management State Private and other Total land area Census water Gross areal Acres 339,018 46,488 179,300 2,469,626 3,034,432 16,512 3,050,944 1, 1, Hectares 137,196 18,813 72,561 999,426 227,996 6,682 234,678 ly.S. Bureau of the Census, land and water area of the United States, 1970. Table 4.--Land area tn San Miguel County by major land class and ownershtp class, 1975 Land class Commercial timberland Productive reserved Other forest land: Unproductive reserved Unproductive nonreserved Total forest land Nonforest land Total land area Acres 2,246 1,607 85,216 89,069 905,251 179,300 State Hectares 909 650 34,486 36,045 36,516 72,561 Ownership class Acres 75,436 156 721,154 796,746 1,672,880 2,469, 626 Private Hectares 63 291,842 322,433 676,993 999 ,426 Table 5.--Area of commercial timberland tn San Miguel County by forest type, stand-stze class, and site class, State owned, 1975 Forest type and stand-size class Douglas-fir: Sawtimber Poletimber Sapling and seedling Nonstocked Total Ponderosa pine: Sawtimber Poletimber Sapling and seedling Nonstocked Total Limber pine: Sawtimber Poletimber Sapling and seedling Nonstocked Total White fir: Sawtimber Poletimber Sapling and seedling Nonstocked Total Pinyon-juniper: Sawtimber Poletimber Sapling and seedling Nonstocked Total Total softwoods: Sawtimber Poletimber Sapling and seedling Nonstocked Total Aspen: Sawtimber Poletimber Sapling and seedling Nonstocked Total All types: Sawtimber Poletimber Sapling and seedling Nonstocked Total Site class Total 165+ 120-164 : 85-119 50-84 20-49 acres SS SS Se Aeres - -----+-+----- -- -- 19 107 129 255 -- -- -- 68 -- 68 -- -- =- 26 -- 26 -- -- 19 201 129 349 =e = ae 324 814 1,138 ss -- -- -- 304 304 == -- -- -- 84 84 sm Se =-- -- 42 42 —_ == ae 324 1,244 1,568 -- -- -- 42 -- 42 — se -- 42 -- 42 se —_ 54 25) 25, 100 — == 54 25) 23 100 ae — == —— 22 22 aye a = — 165 165 BES ae == == 187 187 == -- Hes 496 988 13557. — =e a 68 304 S72 ae —_ == 26 249 275 — == ae -- 42 42 = == 73 590 1,583 2,246 = = 73 496 988 1,557 a a 68 304 B72 as = =e 26 249 275 oe as = = 42 42 ae ae 73 590 1,583 2,246 SS ae a ee ee ae a Se ee eee 10 Table 6.--Area of commercial timberland in San Miguel County by forest type, stand-size class, and site class, private owned, 1975 Forest type and stand-size class Douglas-fir: Sawtimber Poletimber Sapling and seedling Nonstocked Total Ponderosa pine: Sawtimber Poletimber Sapling and seedling Nonstocked Total Limber pine: Sawtimber Poletimber Sapling and seedling Nonstocked Total White fir: Sawtimber Poletimber Sapling and seedling Nonstocked Total Pinyon-juniper: Sawtimber _ Poletimber Sapling and seedling Nonstocked Total Total softwoods: Sawtimber Poletimber Sapling and seedling Nonstocked Total Aspen: Sawtimber Poletimber Sapling and seedling Nonstocked Total All types: Sawtimber Poletimber Sapling and seedling Nonstocked Total Site class Total 165+ : 120-164 : 85-119 50-84 20-49 acres -- err ere er ere ee Acres - ----------- =e == L574 3,279 4,319 8,772 ae = -- 2,242 -- 2,242 = — -- 1,128 -- 1,128 -- -- 1,174 6,649 4,319 12,142 Es oe -- 10,868 27,301 38,169 = =e a -- 11,023 11,023 a == -- -- 3,340 3,340 —_ = -- -- i ip I 1S = es -- 10,868 42,777 53,645 — == -- 1,113 == 1,113 = = =< leds -- 1,113 -- -- 2,210 1,053 1,083 4,316 -- -- 2,210 1,053 15,053 4,316 nee —_ == -- 1,041 1,041 = == a -- 2,078 2,078 ai ates == -- 3,119 Se LL -- -- 3,384 16,313 33,714 535411 ee se -- 2,242 115025 13,265 = == -- L128 5,418 6,546 — = -- -- a3 leg ak; -- -- 3,384 19,683 51,268 LES sé == =+ 734 -- 734 zee a= a -- 367 367 a == -- 734 367 LSLOL -- -- 3,384 17,047 33,714 54,145 == ae -- 2,242 11,390 13,632 ahs == -- 1,128 5,418 6,546 = == -- -- LOLS Me es -- -- 3,384 20,417 51,635 75,436 1 Table 7,--Area of commercial timberland in San Miguel County by forest type, stand-stze class, and stte class, swnmary--State and private, 1975 Forest type and stand-size class Douglas-fir: Sawtimber Poletimber Sapling and seedling Nonstocked Total Ponderosa pine: Sawtimber Poletimber Sapling and seedling Nonstocked Total Limber pine: Sawtimber Poletimber Sapling and seedling Nonstocked Total White fir: Sawtimber Poletimber Sapling and seedling Nonstocked Total Pinyon-juniper: Sawtimber Poletimber Sapling and seedling Nonstocked Total Total softwoods: Sawtimber Poletimber Sapling and seedling Nonstocked Total Aspen: Sawtimber Poletimber Sapling and seedling Nonstocked Total All types: Sawtimber Poletimber Sapling and seedling Nonstocked Total Site class : Total 165+ : 120-164 : 85-119 : 50-84 : 20-49 : acres --- ere ee eee ee Acres - -----+------ -- -- 1,193 3,386 4,448 9,027 = a -- 2,510 == 20 -- -- -- 154 -- 1,154 -- -- 1, 95) 6,850 4,448 12,491 ae os =2 1,155 = 1,155 =A = = e155 22 1,155 z = 2,264 1,076 1,076 4,416 Zé ee 2,264 1,076 1,076 4,416 = ae ae _ 1,063 1,063 ee me 28 2,243 2,243 _- a ae = 3, 306 3,306 ae c a 734 a2 734 a ae ae ie 367 367 =f = =e 734 367 1,101 = fs ae 2,310 11,694 14,004 -- -- 3,457 21,007 535218 77,682 Lev‘ts Z89°LL SST‘I 0£S‘ Tz ¢s9‘0c = ST v SOT 976‘L ITLL ete a Pe A a P e ce ee eere ee opp TOs 0 = = = L9¢ L9¢ L9¢ oe Mee = =< uodsy ee ae Ne ae Se ee cee OR Oe ee SS ee ee 166 ‘0¢ 18S‘9Z SST‘T = = Ol‘ IZ 98z‘0s T1S0‘9T i CY Asay ame =< SpooMzFOS TeIOL a a gee ‘T 902°¢ : =< as 90¢*¢ ae 7 Pa ars ey ae zedtunf-uokutd L8L‘T 9Ib'b = 2c =< = 98T‘Z 9L0‘T OVS lu ss ie IT} 97TUM LOv SST‘T - sr == Fe == SST‘T 2 De a6 eutd requty pe ‘ZZ €1z‘°Ss SST‘T ae a S6L‘9T 86S‘vz OIS‘TT w= “¢ST°T =< io sutd esorepuod Ss0‘S 16> ‘21 == —= aI z90‘T z0S‘¢ OIs'z mee Ath ae IT}-se[snog - sadv7.0eH - --- — se eee eee ae = = = 8OM0P = = He ec we rw ec we wee ec em me eee eS S@SSBTD TLV * payD03SUON: 060 2 08. 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Py out bs sotoeds [Iv : Te.OL : 19410 7 uedsy ; Teo] : THs Ol TUM. esOLapuog : ITZ-SETBNOG : Satoeds GZ6L §a3vAa1ad pun a2v4g fsa1oeds puv yzvap fo asnvo fiq fizunop zenbry ung UL puv7zdequr, [VLOLeUUOD UO Uaquizmps puv y0048s Burmoub fo hz11v4u0uM JoNUUY-- gc eTqeL TeOL BuT3307 umouyuy) uotssoaddns IOYLOM TeuTuy otTA aseostd $.o0su] Teq0L BuT3307 uMOUYU/) uotsseaddns I9Yy.eOM yTewtuy oiTy aseastd $yoesu] [e110] 3uT3307 uMOUYU/} uotsseaddns Ioy zeoM yTewtuy oaTd eseostd S}O9SUT yeep jo osne) 10a70.0.697.191/199 GOVERNMENT PRINTING OEFCEICE- tat: 7 Barrett, Michael K., and Dorothy G. Shupe. 1980. Forest area and timber resource statistics for San Miguel County, New Mexico, 1975. USDA For. Serv. Resour. Bull. INT-17, 23 p. Intermt. For. and Range Exp. Stn. Ogden, Utah 84401. Presents land area, commercial timberland area, timber inventory, and growth and mortality data based on Resources Evaluation standards. KEYWORDS: forest surveys (regional), forest area classifica- tion, stand volume. Barrett, Michael K., and Dorothy G. Shupe. 1980. Forest area and timber resource statistics for San Miguel County, New Mexico, 1975. USDA For. Serv. Resour. Bull. INT-17, 23 p. Intermt. For. and Range Exp. Stn. Ogden, Utah 84401. Presents land area, commercial timberland area, timber inventory, and growth and mortality data based on Resources Evaluation standards. KEYWORDS: forest surveys (regional), forest area classifica- tion, stand volume. The Intermountain Station, headquartered in Ogden, Utah, is one of eight regional experiment stations charged with providing scientific knowledge to help resource managers meet human needs and protect forest and range ecosystems. The Intermountain Station includes the States of Montana, Idaho, Utah, Nevada, and western Wyoming. About 231 million acres, or 85 percent, of the land area in the Station territory are classified as forest and rangeland. These lands include grasslands, deserts, shrublands, alpine areas, and well-stocked forests. They supply fiber for forest in- dustries; minerals for energy and industrial development; and water for domestic and industrial consumption. They also provide recreation opportunities for millions of visitors each year. Field programs and research work units of the Station are maintained in: Boise, Idaho Bozeman, Montana (in cooperation with Montana State University) Logan, Utah (in cooperation with Utah State University) Missoula, Montana (in cooperation with the University of Montana) Moscow, Idaho (in cooperation with the Univer- sity of Idaho) Provo, Utah (in cooperation with Brigham Young University) Reno, Nevada (in cooperation with the University of Nevada) Po, mF MT OF AGRIC