470 likes | 787 Views
CASE STUDY PLSS 3 MILE RULE SUBDIVISION OF SECTIONS (INDIAN LANDS). Warm Springs Indian Reservation. OR….Searching for 100+ Year Old Sticks and Stones with Autocad and Survey Grade GPS Equipment. Warm Springs Indian Reservation Wasco and Jefferson County Oregon Sections 35&36 T8S, R11E WM
E N D
CASE STUDYPLSS 3 MILE RULE SUBDIVISION OF SECTIONS(INDIAN LANDS) Warm Springs Indian Reservation
OR….Searching for 100+ YearOld Sticks and Stones withAutocad and Survey Grade GPSEquipment Warm Springs Indian Reservation Wasco and Jefferson County Oregon Sections 35&36 T8S, R11E WM Sections 2&3 T9S, R11E WM
Free Information from BLM Original GLO Plats (Government Land Office) Warm Springs Reservation 39 Townships 235 Files (Plats) 311 Mbytes Data http://www.or.blm.gov/lo/
Details of Sec 35 and 36, T8S, R11E WMEast-West Subdivision Lines1887 Mc Quinn & Campbell
Details of Sections 25,26, and 27T9S, R12E, WMNorth-South Subdivision Lines1871 Handley
Typical Survey EquipmentMid-Late 1800’s Surveyor’s Chain Staff Compass
General Descripton This is the description for T9S, R12E, WM The township where Warm Springs is now located. Note: The “URGENTLY NEEDED” work to subdivide some sections in 1871.
Normal Subdivision SurveyRed = Surveyed Lines (7 miles of survey)
Three Mile Rule SubdivisionRed = Surveyed Line, Green = Cardinal Direction
3 Mile Rule Subdivision LandsWarm Springs Reservation (Urgently Needed Late 1800’s)
3 Mile Rule + Existing Allotments Warm Springs ReservationPresent Day
Sidwalter FlatCounty Line Road3Mile Rule SubdivisionExisting AllotmentsRed = 100+yr Old Urgently NeededCyan = Present AllotmentsWhite = GPS Base MonumentsGreen = Section LinesYellow = Township Lines
Project Area County Line Road4 Sections – Search for 36 Stone Monuments
Original GLO Notes Available at Local County Surveyor’s Office Or State BLM Office Either Micro-fiche or paper copies Pay by the sheet for duplicating costs Estimate 1 sheet per mile of surveyed line
Brass Cap ¼ Corner Between Sec 34 T8S, R11E WM & Sec 3 T9S, R11E WM Problem: Missing GLO records to show when this brass cap was placed. Broken chain of evidence. Assume corner re-monumentation was done around the 1920’s? Lincoln E. Wilkes worked in adjacent township in 1918, but no plat filed for these townships. Records may be with state BLM office? Existing monuments not set firmly in ground.
Need to Prove Correct Locations for Existing Brass Cap ¼ Corners My Solution: Use Original GLO notes for 3 mile rule subdivision of sections to find scribed stone monuments for the nine interior 1/16 corners within each section. If interior monuments agree with predicted positions from suspect brass caps on exterior boundary of section accept unknown sourced brass caps as accurate.
Sample 1/16 Corner Breakdown of Section Note: Mounds are NOT corner monuments. Mounds constructed ALONGSIDE scribed stone monuments in cardinal directions (N,S,E,or W). Scribing normally on flat face on north side of stone monument. Occasionally on bottom of stone, may be partially buried in ground.
Trimble 4700 Rover set on mound of stones near 1/16 corner.Sec 2 T9S, R11E WM
1/16 Corner Stone in Section 2 T9S, R11E WM Note: Split rail fence posts found in sagebrush. Remnants of stone fence to North. Stone temporary facing south for picture. Returned to original position after photo.
1/16 Corner Stone in Section 2 T9S, R11E WM Note: Mound to right of surveyor partially below juniper tree North of stone and stone partially buried.
Scribed Stone Markings ¼ Corner
Scribed Stone Markings 1/16 Corner
Foundation Storage BuildingApprox 1 Chain North of House Call15’ x 25’ Rectangular Stacked Rock Foundation
Summary of ProjectAll With Survey Grade GPSRadial Type SurveyGathering 180 Second “Control Point” Type Data 52 Unknown Source Brass Caps Located 2 Suspicious (Non-Typical) ¼ Corners Being Used Searched for 36 Old 3-Mile Subdivision 1/16 Corners Found: 19 Stone Monuments 13 Accessory Rock Mounds 4 Sites with no current evidence