Horn Thin Timber Sale - USDA Forest Service

Horn Thin Timber Sale
Logging Feasibility Report
North Nestucca EA
Hebo Ranger District
Siuslaw National Forest
Tillamook County, Oregon
Prepared by: Matt Ruedy
Date: July 19, 2013

Horn Thin Timber Sale
Table of Contents
1. Sale Description
2. Resource Management Objectives
3. Unit Logging Summary and Yarding Method
4. Line Capacities of Proposed Yarder and Carriage
5. Estimated Labor
6. Estimated DailyYarding Production
7. Estimated Yarding Distances
8. Unit Summary
9. Payload Analysis Summary (Profile runs available at Hebo District)
10. CT6.42# Contract Clause
11. Logging Plan Narrative

Horn Thin Timber Sale
1. Sale Description:
Horn Thin Timber Sale is a commercial thinning sale containing approximately 448
acres. The sale area is located in sections 2, 3, 4, 5, 8, 9 & 10, T4S, R10W, W.M.,
Tillamook County, Oregon. Forest Service roads 1023 and 1024 and numerous spur
roads off of them access the seven units within the sale area.
Douglas fir, western hemlock, red alder and Sitka spruce are the dominant species in
most units. Directional felling may be required. As much as feasible big leaf maple will
not be felled in the units. No Pacific yew was observed during stand exams, cruising and
logging systems analyses. Any Pacific yew found during logging operations will not be
felled. Minimum DBH for trees to be harvested is 7.0”. Trees less than 7.0” will be
protected where practical.
The sale is designed to yard with skyline (83%) and ground-based (17%) systems.
There are areas that will need multi-span configurations to yard the unit or portions of
them. These are shown on yarding maps.
A yarder that has a 50 foot tower height was chosen to run in skyline analysis. A carriage
that has multi-span capability and slackpulling capabilities was used in the analysis.
Tail-trees are necessary on most skyline roads. Multiple stump anchors may be needed
for some landing locations as they are located in younger stands, the existing trees may
be too small and the existing stumps may be too old to use.
A yarding system capable of lifting 20,000 pounds and transporting logs at least 1,200
feet to the landing area.
Ground based yarding shall be limited to slopes of 30 percent or less and use designated
skid trails. All designated skid trails must be approved by the sale administrator.
Trimble GIS was used to calculate unit acres and meet Region 6 Acreage Determination
Standards.
A string box was used to determine length for temporary roads.

Horn Thin Timber Sale
2. Resource Management Objectives:
The stand prescriptions, unit layout, logging and transportation plans will be designed to
meet the following resource objectives:
- Develop stand into late-successional habitat consistent with the Northwest Forest
Plan and the Northern Coast Range Adaptive Management Area Late
Successional Reserve Assessment.
-
- Manage riparian reserves consistent with the Northwest Forest Plan’s Aquatic
Conservation Strategy.
- Protect water quality and fish habitat in all streams.
- Minimize soil disturbance during all phases of harvest activity.
- Protect T&E wildlife species by limiting operating seasons.
Horn Thin Timber Sale
3. Unit Logging Summary and Yarding Method:
Sale Name: Horn Thin
Units: 164, 165, 166, 180, 184, 208 & 209.
Ground Based Units: 165, 180, 184, 208 & 209
Skyline Based Units: 164, 165, 166, 180, 184, 208 & 209
Volume: 7.39 mmbf/15,010 ccf
Tower: 50 ft. (Madill 6150 SPCM used in analysis)
Carriage: Able to pass shackles and have slackpulling capabilities (Acme 20 used in
analysis)
Tractor: Crawler tractor for landing clearing
Skidder

Delimber
Loader/shovel
Tail tree hardware
Intermediate support rigging hardware
Chokers: Length 12’, diameter ½”
Tagline: Length 200’, diameter ½”
Horn Thin Timber Sale
4. Line Capacities of Yarder and Proposed Carriage:
Line Diameter Drum Capacity
Skyline 0.875 2,000 feet/EIPS
Mainline 0.625 2,300 feet/EIPS
Haulback 0.50 4,300 feet/EIPS
Strawline
n/a
Guyline 0.625 300 feet/EIPS
Choker 0.50
Carriage: Eagle Eaglet; 1,200 pounds
Horn Thin Timber Sale
5. Estimated Labor:
Yarding Labor
Number
Hooktender 1
Rigging slinger 1
Choker setter w/radio 1
Choker setter 1
Yarder engineer 1
Loader operator 1
Delimber operator 1
Landing chaser 1

Horn Thin Timber Sale
6. Estimated daily yarding production:
15 mbf/day net log scale
Horn Thin Timber Sale
7. Estimated Yarding Distances:
Unit # Average Yarding Distance Maximum Yarding Distance
164 1,031’ 1,370’
165 575’ 1,163’
166 865’ 1,005’
180 585’ 1,550’
184 410’ 949’
208 583’ 929’
209 392’ 559’
Horn Thin Timber Sale
8. Unit Summary:
Stand/unit# Sky
Acreage
Ground
Acreage
New
Temp
Road
Length
(ft)
Existing
Temp
Road
Length
(ft)
# Corridors
Skyline/Groundbase
# Landings
Skyline/Groundbase
164 23.88 0 0 0 8/0 7
165 96.18 11.69 0 1,883’ 87/25 43
166 33.16 0 0 0 14/0 9
180 148.53 36.64 91’ 505’ 122/40 77
184 27.47 15.65 441’ 1,128’ 21/34 20
208 21.66 0 0 697’ 16/0 7
209 20.62 13.38 0 1,158’ 32/33 22
Totals 371.50 77.36 532’ 5,371’ 300/132 185*
*Multiple landings used for skyline/groundbase

Horn Thin Timber Sale
9. Payload Analysis Summary:
Payload analysis calculations were based on a 0.875 diameter skyline cable and a 50 foot
tower coupled with a carriage that can pass shackles and has lateral yarding capabilities.
In order to gain adequate deflection, tailtrees were uses on most analyzed profiles.
Additional lift can be gained in some cases by hanging across draws and up adjacent
slopes.
The payload analysis was determined by using the SkylineXL 3.01 Profile Analysis
program and standing skyline or multi-span skyline systems. Adequate tree sizes are
available for tailtrees and intermediate supports using a rigging height of up to 30 feet.
Adequate payloads equate to three average logs or two long logs (whole tree length,
measured from stump cut to 6.0” top).
Net payloads to landing ranged from 4,184 lbs to 13,264 lbs.
Horn Thin Timber Sale
10. CT6.42# Contract Clauses:
CT6.42# SPECIAL YARDING/SKIDDING METHODS. (1/93) Methods other than
those specified may be approved. When appropriate, such approval shall include changes
in current contract rates and Sale Area Map shall be revised.
1. Except during lateral yarding, the yarding system must keep one end suspended
above ground during in-haul.
2. The carriage shall be positioned such that during lateral yarding, logs are to be
yarded away from stream courses.
3. Ground-lead yarding is permitted within 50 feet of payment unit boundaries, 50
feet of tail trees, and 50 feet of tower position.
4. Skyline roads will be spaced so as to cause the least amount of damage to the
residual stand. This may require spacing from no closer than 100 feet or no
further apart than 150 feet at back end of the road when radial roads are used. If
parallel roads are to be used design the distance to be 200 feet center to center.
Where situations warrant changes to this the Forest Service will determine if this
can change on a case by case basis.

5. When skyline, haulback or other cable pass through areas of residual trees or
reproduction more than 18 inches in height, lines shall be pulled out of the
residual trees or reproduction area prior to restringing the next skyline road.
6. Skyline corridors shall be as narrow as possible but normally not exceed 12 feet in
width.
7. Location of all skyline roads shall be agreed and approved prior to felling and or
yarding.
8. Yarding across streams shall require logs to be fully suspended for 50 feet slope
distance both sides of stream channel and or outside the buffered area.
9. A slackpulling carriage able to maintain a fixed position on the skyline during
lateral yarding and can pass over intermediate supports. The carriage must be
capable of lateral yarding up to 75 feet from skyline. An extra 75’ of tagline may
be needed on the end of the carriage choker.
10. Tractor assist may be required.
Horn Thin Timber Sale
11. Logging Plan Narrative:
All unit boundaries are marked with blue boundary tags, blue ribbon and orange paint.
All landings are marked with yellow tags and florescent pink flagging.
All temporary spurs (existing and new) are marked with yellow tags and solid blue/white
flagging.
Minor clearing is required for some landings.
Landings are located to minimize yarding over buffered stream and headwalls.
All roads and landings will be reviewed on the ground by a District hydrologist and the
Forest transportation planner for the timber sale appraisal and contract.
Log hauling will be limited to dry season on most temporary roads because of cost
associated with the quantity of rock needed.
There are perennial streams and headwalls that exist within the units. Theses areas will
be buffered and excluded from the units. Buffer boundaries will be marked on the

ground to protect slope stability and water quality. Full log suspension is required over
streams and headwalls. Intermittent streams will not be buffered.
Skyline landings generally use fan-shaped and parallel settings, with most turnroads
using single-span configurations. Tailholding on opposing slopes is emphasized, where
opportunities exist, to reduce the need for tailtrees and intermediate supports.
Where yarding will occur over streams, some areas may lack the deflection necessary to
obtain full suspension of logs during whole-tree yarding. Shorter log lengths will be
required over these areas.
Some ground-based logging is planned in units 165, 180, 184, 208 & 209. Most of the
remaining units will require some loader/shovel logging along the roadway or on
designated skid trails.
Directional felling may be needed in several units. Extra tagline may be needed in areas
that require directional felling.
Units 164, 165, 166, 184, 208 & 209 contain ½ acre and 1 acre “gaps”. Largest Doug fir
in middle of gap designated with orange tracer paint.
Units 165 and 184 have survey monuments and bearing trees. These are designated with
orange tracer paint and are identified on sale area maps.

General Information
Unit # : 164
Stand # :
302164
Legal Location:
S4, T4S, R10W, W.M., Tillamook Co., OR Acres: 23.88
Photo Number: 35-11a 72 Residual TPA Post Harvest:
65
Silvicultural Prescription: DxD 16 Residual TPA Post DWD & Snags:
5
Recon by/Date:
M.Ruedy, 4/2013
Source of volume estimate:
Power Lines:
Invasive/Sensitive Plants:
Dump Sites:
Survey Monuments:
Improvements:
Horn Thin Unit Summary sheet
Hebo Ranger District
Volume Information
Cruise Estimated Volume:
Special Considerations
Yes No Yes No
x
Fences:
x
x
Heritage Sites:
x
x
Meadows:
x
x
Water Systems:
x
x
Other:
x
Road and Landing Information
Landing Road Type
Road Existing or
Length New
Landing
164A 1023 Existing
164B 1023 Existing
164C 1023 Existing
164D 1023 Existing
164E 1023 Existing
164F 1023 Existing
164G 1023 Existing
Road Type
393 mbf/800 ccf
Road
Length
Existing
or New
Notes

Landing
Logging
System Type
Guyline
Anchor
Trees
Logging Systems Information
Multiple
Guy
Anchors
Special
Anchors
Intermediate
Supports
Tailtrees
Logging Profiles Run
and Azimuth/Length
164A S B 1 TT, 20
164B S B 1 TT, 20
164C S B 1 TT, 20
164D S B 1 TT, 20
164E S B 1 TT, 20 Yes 359, 1,127
164F S B 1 TT, 20
164G S B 1 TT, 20
Key: Logging System abbreviations are Skyline (S), Ground-Based (GB), Yoader (Y), Helicopter (H), or a combination of
logging systems for each landing. Guyline anchor trees abbreviations are P for plantation, M for mature, and B for both.
Special anchor abbreviations are Equipment (Eq), Deadmen (D), Earth (E), guyline (G) anchor, and tailhold (T).
Abbreviations for intermediate supports (IS) and tailtree (TT).
Average Yarding Distance:
Average Mainline Tension:
Maximum Tagline Needed:
Maximum Yarding Distance:
Unit Totals and Averages
1,031'
Average Net Pound per Payload: 7,039 lbs
6,671 lbs Average Slope:
45%
10' Total Number of Corridors:
8
1,370' Total Number of Landings:
7
Notes

General Information
Unit # : 165
Stand # :
302165
Legal Location:
S2,3,10,11, T4S, R10W, W.M., Tillamook Co., OR Acres: 107.87
Photo Number: 35-11a 70 Residual TPA Post Harvest:
75
Silvicultural Prescription: DxD 15 Residual TPA Post DWD & Snags:
5
Recon by/Date:
M.Ruedy 4/2013
Source of volume estimate:
Power Lines:
Invasive/Sensitive Plants:
Dump Sites:
Survey Monuments:
Improvements:
Horn Thin Unit Summary sheet
Hebo Ranger District
Volume Information
Cruise Estimated Volume:
1,771 mbf/3,604 ccf
Special Considerations
Yes No Yes No
x
Fences:
x
x
Heritage Sites:
x
x
Meadows:
x
x
Water Systems:
x
x
Other:
x
Road and Landing Information
Landing Road Type
Road Existing or
Road Existing
Landing Road Type
Length New
Length or New
165A,B,C 1024 Existing 165AA,BB 1024112 Existing
165D,E,F 1024 Existing 165CC,DD 1024112 Existing
165G,H,I 1024 Existing 165EE,FF 1024112 Existing
165J,K,L 1024 Existing 165GG,HH 1024112 Existing
165M,N,O 1024 Existing 165II,JJ 1024112 Existing
165P,Q 1024 Existing 165KK,LL 1024112 Existing
165R-V non-system 745' Existing 165MM,NN 1024112 Existing
165W,X,Y,Z 1024112 Existing 165OO,PP 1024112 Existing
Existing 165QQ non-system 338' Existing
Notes

Landing
Logging
System Type
Guyline
Anchor
Trees
Logging Systems Information
Multiple
Guy
Anchors
Special
Anchors
Intermediate
Supports
Tailtrees
Logging Profiles Run
and Azimuth/Length
165A,B,C,D S,Y P TT, 20
165E-I S,Y P TT, 20
165J-Q S,Y P 9 TT, 20
165R-V S,Y P TT, 20
165W-CC S,Y M TT, 20
165DD-GG S,Y P TT, 20
165II S,Y P TT, 20
165JJ S,Y P 2 TT, 20 Yes 10, 821
165KK_PP S,Y P TT, 20
165QQ S,Y P 3 TT, 20 Yes 45, 900
Key: Logging System abbreviations are Skyline (S), Ground-Based (GB), Yoader (Y), Helicopter (H), or a combination of
logging systems for each landing. Guyline anchor trees abbreviations are P for plantation, M for mature, and B for both.
Special anchor abbreviations are Equipment (Eq), Deadmen (D), Earth (E), guyline (G) anchor, and tailhold (T).
Abbreviations for intermediate supports (IS) and tailtree (TT).
Average Yarding Distance:
Average Mainline Tension:
Maximum Tagline Needed:
Maximum Yarding Distance:
General Information: Total of 43 landings.
Unit Totals and Averages
575' Average Net Pound per Payload: 8,611 lbs
9,413 lbs Average Slope:
55%
10' Total Number of Corridors:
87
1,185'
Total Number of Landings:
Notes

General Information
Unit # : 166
Stand # :
302166
Legal Location:
S4, T4S, R10W, W.M., Tillamook Co., OR Acres: 33.16
Photo Number: 34-10A 71 Residual TPA Post Harvest:
75
Silvicultural Prescription: DxD 15 Residual TPA Post DWD & Snags:
5
Recon by/Date:
M.Ruedy 4/2013
Source of volume estimate:
Power Lines:
Invasive/Sensitive Plants:
Dump Sites:
Survey Monuments:
Improvements:
Horn Thin Unit Summary sheet
Hebo Ranger District
Volume Information
Cruise Estimated Volume:
Special Considerations
Yes No Yes No
x
Fences:
x
x
Heritage Sites:
x
x
Meadows:
x
x
Water Systems:
x
x
Other:
x
Road and Landing Information
Landing Road Type
Road Existing or
Length New
Landing
166A 1023 Existing
166B 1023 Existing
166C 1023 Existing
166D 1023 Existing
166E 1023 Existing
166F 1023 Existing
166G 1023 Existing
166H 1023 Existing
166I 1023 Existing
Road Type
546 mbf/ 1,110 ccf
Road
Length
Existing
or New
Notes

Landing
Logging
System Type
Guyline
Anchor
Trees
Logging Systems Information
Multiple
Guy
Anchors
Special
Anchors
Intermediate
Supports
Tailtrees
Logging Profiles Run
and Azimuth/Length
166A S,Y P TT, 20 Yes 346, 750
166B S,Y P TT, 20
166C S,Y P TT, 20
166D S,Y P TT, 20
166E S,Y M TT, 20
166F S,Y M TT, 20
166G S,Y M TT, 20
166H S,Y M TT, 20
166I S,Y M TT, 20
Key: Logging System abbreviations are Skyline (S), Ground-Based (GB), Yoader (Y), Helicopter (H), or a combination of
logging systems for each landing. Guyline anchor trees abbreviations are P for plantation, M for mature, and B for both.
Special anchor abbreviations are Equipment (Eq), Deadmen (D), Earth (E), guyline (G) anchor, and tailhold (T).
Abbreviations for intermediate supports (IS) and tailtree (TT).
Average Yarding Distance:
Average Mainline Tension:
Maximum Tagline Needed:
Maximum Yarding Distance:
Unit Totals and Averages
865' Average Net Pound per Payload: 13,266 lbs
13,388 lbs Average Slope:
45%
10' Total Number of Corridors:
15
1,004' Total Number of Landings:
9
Notes

General Information
Unit # : 180
Stand # :
302180
Legal Location:
S4,5,8,9, T4S, R10W, W.W., Tillamook Co., OR Acres: 185.17
Photo Number: 34-10A 71 Residual TPA Post Harvest:
85
Silvicultural Prescription: DxD 14 Residual TPA Post DWD & Snags:
5
Recon by/Date:
M.Ruedy 4/2013
Source of volume estimate:
Power Lines:
Invasive/Sensitive Plants:
Dump Sites:
Survey Monuments:
Improvements:
Horn Thin Unit Summary sheet
Hebo Ranger District
Volume Information
Cruise Estimated Volume:
3,041 mbf/ 6,186 ccf
Special Considerations
Yes No Yes No
x
Fences:
x
x
Heritage Sites:
x
x
Meadows:
x
x
Water Systems:
x
x
Other:
x
Road and Landing Information
Landing Road Type
Road Existing or
Road Existing
Landing Road Type
Length New
Length or New
180A-J 1023 Existing 180K-T 1023112 Existing
180AA-MM 1023 Existing 180U-Z 1023 Existing
SSS-UUU non-system 505' Existing
180OO-YY 1023114 Existing VVV-ZZZ 1023113 Existing
180ZZ non-system 150' Existing
AAA-EEE 1023114 Existing
FFF-KKK 1023115 Existing
LLL-QQQ 1023114 Existing
180RRR non-system 91' New
Notes

Landing
Logging
System Type
Guyline
Anchor
Trees
Logging Systems Information
Multiple
Guy
Anchors
Special
Anchors
Intermediate
Supports
Tailtrees
Logging Profiles Run
and Azimuth/Length
180B S M 1 TT, 30 Yes 222, 1,900
180A, C-J S,Y M 3 TT, 30
180K-T S,Y M TT, 30
180U-Z S,Y M TT, 30
AA-MM S,Y B TT, 30
TT, 30
OO-ZZ S,Y B TT, 30
AAA-QQQ Y P TT, 20
RRR Y P TT, 20
SSS-UUU Y P TT, 20
VVV-ZZZ Y P TT, 20
Key: Logging System abbreviations are Skyline (S), Ground-Based (GB), Yoader (Y), Helicopter (H), or a combination of
logging systems for each landing. Guyline anchor trees abbreviations are P for plantation, M for mature, and B for both.
Special anchor abbreviations are Equipment (Eq), Deadmen (D), Earth (E), guyline (G) anchor, and tailhold (T).
Abbreviations for intermediate supports (IS) and tailtree (TT).
Average Yarding Distance:
Average Mainline Tension:
Maximum Tagline Needed:
Maximum Yarding Distance:
Unit Totals and Averages
585' Average Net Pound per Payload: 3,887 lbs
4,184 lbs Average Slope:
40%
75' Total Number of Corridors:
122
1,550'
Total Number of Landings:
Notes
General Information: Total number landings is 77. Directional fall timber in designated areas and 200' of tagline
at end of chokers needed to log behind tailtrees.

General Information
Unit # : 184
Stand # :
302184
Legal Location:
S2,10, T4S, R10W, W.M., Tilamook County, OR Acres: 43.12
Photo Number: 35-11A 70 Residual TPA Post Harvest:
85
Silvicultural Prescription: DxD 14 Residual TPA Post DWD & Snags:
5
Recon by/Date:
M.Ruedy 4/2013
Source of volume estimate:
Power Lines:
Invasive/Sensitive Plants:
Dump Sites:
Survey Monuments:
Improvements:
Widow Thin Unit Summary sheet
Hebo Ranger District
Volume Information
Cruise Estimated Volume:
709 mbf/ 1,443 ccf
Special Considerations
Yes No Yes No
x
Fences:
x
x
Heritage Sites:
x
x
Meadows:
x
x
Water Systems:
x
x
Other:
x
Road and Landing Information
Landing Road Type
Road Existing or
Road Existing
Landing Road Type
Length New
Length or New
184A 1024113 Existing 184K 1024113 Existing
184B 1024113 Existing 184L 1024113 Existing
184C 1024113 Existing 184M 1024113 Existing
184D 1024113 Existing 184N 1024113 Existing
184E 1024113 Existing 184O 1024113 Existing
184F 1024113 Existing 184P-R 442' New
184G 1024113 Existing 184S nonsystem 1,030' Existing
184H 1024113 Existing 184T 1024 Existing
184I 1024113 Existing
184J nonsystem 99' Existing
Notes

Landing
Logging
System Type
Guyline
Anchor
Trees
Logging Systems Information
Multiple
Guy
Anchors
Special
Anchors
Intermediate
Supports
Tailtrees
Logging Profiles Run
and Azimuth/Length
184A S,Y P TT, 20
184B S,Y P 1 TT, 20
184C S,Y P 1 TT, 20
184D S,Y P 1 TT, 20 Yes 7, 1,009
184E S,Y P 1 TT, 20
184F S,Y P TT, 20
184G S,Y P 1 TT, 20
184H S,Y P TT, 20
184I S,Y P TT, 20
184J S,Y,G P TT, 20
184K S,Y P TT, 20
184K S,Y P TT, 20
184L S,Y P TT, 20
184M S,Y,G P TT, 20
184N S,Y,G P TT, 20
184O S,Y,G P TT, 20
184P,Q,R S,Y,G P TT, 20
184S S,Y,G P TT, 20
184T S,Y P TT, 20
Key: Logging System abbreviations are Skyline (S), Ground-Based (GB), Yoader (Y), Helicopter (H), or a combination of
logging systems for each landing. Guyline anchor trees abbreviations are P for plantation, M for mature, and B for both.
Special anchor abbreviations are Equipment (Eq), Deadmen (D), Earth (E), guyline (G) anchor, and tailhold (T).
Abbreviations for intermediate supports (IS) and tailtree (TT).
Average Yarding Distance:
Average Mainline Tension:
Maximum Tagline Needed:
Maximum Yarding Distance:
Unit Totals and Averages
410' Average Net Pound per Payload: 6,817 lbs
5,255 lbs Average Slope:
45%
50' Total Number of Corridors:
21
949' Total Number of Landings:
20
Notes

General Information
Unit # : 208
Stand # :
302208
Legal Location:
S10, T4S, R10W, W.M., Tillamook Co., OR Acres: 21.66
Photo Number: 35-11A 69 Residual TPA Post Harvest:
75
Silvicultural Prescription: DxD 15 Residual TPA Post DWD & Snags:
5
Recon by/Date:
M.Ruedy 4/2013
Source of volume estimate:
Power Lines:
Invasive/Sensitive Plants:
Dump Sites:
Survey Monuments:
Improvements:
Horn Thin Unit Summary sheet
Hebo Ranger District
Volume Information
Cruise Estimated Volume:
Special Considerations
Yes No Yes No
x
Fences:
x
x
Heritage Sites:
x
x
Meadows:
x
x
Water Systems:
x
x
Other:
x
Road and Landing Information
Landing Road Type
Road Existing or
Length New
Landing
208A 1024 Existing
208B 1024 Existing
208C 1024 Existing
208D 1024 Existing
208E 1024 Existing
208F 1024 Existing
208G non-system 700' Existing
Road Type
356 mbf/ 725 ccf
Road
Length
Existing
or New
Notes

Landing
Logging
System Type
Guyline
Anchor
Trees
Logging Systems Information
Multiple
Guy
Anchors
Special
Anchors
Intermediate
Supports
Tailtrees
Logging Profiles Run
and Azimuth/Length
208A S P TT, 20
208B S P TT, 20 Yes 100,1,080
208C S P TT, 20
208D S P TT, 20
208E S P TT, 20
208F S P TT, 20
208G S P TT, 20 Yes 100, 922
Key: Logging System abbreviations are Skyline (S), Ground-Based (GB), Yoader (Y), Helicopter (H), or a combination of
logging systems for each landing. Guyline anchor trees abbreviations are P for plantation, M for mature, and B for both.
Special anchor abbreviations are Equipment (Eq), Deadmen (D), Earth (E), guyline (G) anchor, and tailhold (T).
Abbreviations for intermediate supports (IS) and tailtree (TT).
Average Yarding Distance:
Average Mainline Tension:
Maximum Tagline Needed:
Maximum Yarding Distance:
Unit Totals and Averages
583' Average Net Pound per Payload: 10,955 lbs
8,662 lbs Average Slope:
40%
50' Total Number of Corridors:
16
929' Total Number of Landings:
7
Notes
General Information: Large diameter trees outside unit for tailholds. Landings A-F are along road 1024.

General Information
Unit # : 209
Stand # :
302209
Legal Location:
S9, T4S, R10W., W.M., Tillamook Co., OR Acres: 34
Photo Number:
Residual TPA Post Harvest:
75
Silvicultural Prescription: DxD 15 Residual TPA Post DWD & Snags:
5
Recon by/Date:
M.Ruedy 4/2013
Source of volume estimate:
Power Lines:
Invasive/Sensitive Plants:
Dump Sites:
Survey Monuments:
Improvements:
Horn Thin Unit Summary sheet
Hebo Ranger District
Volume Information
Cruise Estimated Volume:
Special Considerations
Yes No Yes No
x
Fences:
x
x
Heritage Sites:
x
x
Meadows:
x
x
Water Systems:
x
x
Other:
x
Road and Landing Information
Landing Road Type
Road Existing or
Road Existing
Landing Road Type
Length New
Length or New
209A 1024114 Existing 209Q 1024114 Existing
209B 1024114 Existing 209R 1024114 Existing
209C 1024114 Existing 209S 1024114 Existing
209D 1024114 Existing 209T 1024114 Existing
209E 1024114 Existing 209U non-system 186' Existing
209F 1024114 Existing 209V 1024114 Existing
209G-M non-system 972' Existing
209N 1024114 Existing
209O 1024114 Existing
209P 1024114 Existing
Notes
559 mbf/ 1,139 ccf

Landing
Logging
System Type
Guyline
Anchor
Trees
Logging Systems Information
Multiple
Guy
Anchors
Special
Anchors
Intermediate
Supports
Tailtrees
209V S B TT 3
209A-D S B TT 3
209E S B 1 TT 3
209F S B 1 TT 3
209G-J GB,Y P TT 3
209K S,GB,Y P TT 3
209L S,GB,Y P TT 3
209M S,GB,Y P TT 3
209N GB,Y M TT 3
209O GB,Y M TT 3
209P GB,Y M TT 10
209Q Y M TT 10
209R Y M TT 10
209S Y M TT 10
209T Y M TT 10
209U S P TT 3
209W S P TT 3
Logging Profiles Run
and Azimuth/Length
Key: Logging System abbreviations are Skyline (S), Ground-Based (GB), Yoader (Y), Helicopter (H), or a combination of
logging systems for each landing. Guyline anchor trees abbreviations are P for plantation, M for mature, and B for both.
Special anchor abbreviations are Equipment (Eq), Deadmen (D), Earth (E), guyline (G) anchor, and tailhold (T).
Abbreviations for intermediate supports (IS) and tailtree (TT).
Average Yarding Distance:
Average Mainline Tension:
Maximum Tagline Needed:
Maximum Yarding Distance:
Unit Totals and Averages
392' Average Net Pound per Payload: 13,455 lbs
11,787 lbs Average Slope:
75%
20' Total Number of Corridors:
32
559'
Total Number of Landings:
Notes
General Information: Landings U, A-F, K,L M,U,W will have to tailhold across Horn Creek to get adequate lift.
Total number of landings is 22.

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1034116
1034000
1024116
1024112
1024117
1024000
1034126
Horn Thin
Logging Systems Map
1024113
1023000
1024120
1024121
1024114
1024115
0 375 750 1,500 2,250 3,000
Feet
Legend
!( Landings
Corridors
SkidRoads
Temporary Roads
Existing Roads
Subdivision Boundary