That map seems to show the dropzone ending near Orchards at the south, not the river. I wonder why the memo says one thing, but the map indicates another. Perhaps the map is the original that requires amending with Soderlind's calculations.
BTW, thanks for the spelling correction on his name, G.
and 1-9-72
OK, but neither map indicates a search area extending south to the Columbia River as indicated in Tosaw’s book.
Why would they revise the maps they had? They had several maps and tons of dialogue between all parties involved in tracking 305 and estimating a drop zone ?
What I see missing from the records, is any mention of a local search in the Portland-Vancouver area, or much consideration that Cooper might not have died during the jump, or that he might be in transit back to where it all started at SEATAC. No 302s, no interviews by anyone that reveal there were such a consideration or searches, no real mention of the robbery at Heisson, . . . no reports from deputies that such a search was even considered or conducted. That is a glaring omission! Not maps showing the Columbia per se. The 302s say what they say and we know the Columbia was included in a possible search zone. The whole area from Orchards to the Columbia was in play early. It just wasnt being given any real attention or a search, apparently.
If no one else considered the Columbia, Tosaw certainly did. Let's consult the Cooper Cult leaders here and see what they think or say. Probably nothing.
Something made Tosaw play his Columbia cards where he did - spent a ton of money - his Nile Kinnick search cost him far less - why did Tosaw place his bets where he did? I doubt it was just for publicity's sake. Tosaw told his divers he had hard FBI info he was following! What did he think he had and from whom? 
Correct. That’s why I posted this after:
Yes, my hope is that eventually in the 302s we get confirmation on Tosaw’s claim that Soderlind calculated a drop zone extending south to the Columbia. So far, nothing.
The first public indication of any interest by Tosaw in the Cooper case was when he called the Daily Iowan Newspaper in March 1980, a small student run university newspaper in those days, covering Two-saw's announced plans to find and raise the Nile Kinnick plane and have it installed as a memorial to Kinnick outside the Kinnick Football Stadium at Iowa City. Tosaw's proposal had stirred controversy in this State and at Iowa City. Tosaw claimed to have Kinnick family support, but even that was being disputed.
Without any preamble Tosaw called up the DI and got a student reporter on the phone and 'announced' ... “I have retired. I am now interested in the DB Cooper case. I may write a book about the Cooper case…” [Daily Iowan interview re- Nile Kinnick plane, Richard Tosaw March 1980 ] The reporter asked Tosaw if he had any Kinnick news to which Tosaw replied: "no". Tosaw said thanks and hung up! This news was passed on to the Iowa City Press Citizen but they chose not to print it.
Whoopie!
Tosaw eventually called several other newspapers as 1980 went by and gave them the same news. Finally in March of 1982 Tosaw arrives at Portland and starts an actual search ...
From my notes:
1982 Feb – “An attorney from Modesto CA with a taste for adventure is launching a search for the body of 1971 skyjacker D.B. Cooper. Richard Tosaw 56 is offering a $25,000 reward for anyone who can produce Cooper’s remains. Tosaw will be in Vancouver on Thursday to begin organizing a search for the remains … The search is planned for area forests this summer. … Tosaw has created ‘Research Publishing Co.’ to market a book on his search. The preferred title is “I Found DB Cooper” … He has placed classified ads in Northwest papers offering his reward good until July 1, 1982. The Modesto Bee Newspaper confirmed Tosaw is a long-time attorney there with extensive real estate holdings. …” [Feb 10, 1982 Spokesman-Review Spokane WA]
1982 Feb-March: Numerous calls to media and people familiar with the Columbia looking for divers, advice (much of which he rejects), . ..
1982 March 10 - earliest report of an actual Tosaw search: – “The quest to track down legendary hijacker DB Cooper has been handed over to a young boat owner Blake Payne prepared to dive for the $200,000 ransom money of the 1971 hijacking. Blake Payne 22 will take to the water Tuesday to drag the Columbia River in the search financed by former FBI Agent Richard Tosaw now a Ceres CA attorney. Payne’s hiring hinged on his scuba expertise because Tosaw believes the $200,000 ransom Cooper snared Thanksgiving Eve 11 years ago from the hijack of a Northwest Airlines 727 lurks somewhere in Oregon waters.” [March 10 by Clyde Jabin: Portland OR, Assoc Press. Photo: Payne and Tosaw examining chart on Payne’s boat.]
1982 Nov. 6, 1982 – republication of Clyde Jabin March 10 article! - “Blake Payne, 22, will take to the water Tuesday to drag the Columbia River in the search financed by former FBI-agent Richard Tosaw, now a Ceres, Calif., attorney. The only solid clue to Cooper's disappearance was the 1980 finding of $5,800 of the $20 bills on a beach nine miles west of Vancouver, Wash. Until then FBI agents conjectured that Cooper left his plane somewhere near Merwin Lake on the Lewis River, southwest of Mount St. Helens. They concluded the middle-aged Cooper probably drowned or died of exposure in the Cascade Mountains. Tosaw figures that Cooper came down somewhere near the beach where the rotted packets of bills were found. He believes a Corps of Engineers' dredge stirred up a portion of the money, which was then carried to the beach on farming property owned by the Fazio Brothers. Payne and his 27-foot boat have been hired to confirm that theory. 'He's paid me for two weeks so far and wants me for 30 days,' said Payne of Tosaw's mission. Even if the young diver comes up with nothing, he is destined to become a part of D.B. Cooper lore, as Tosaw is writing a book on his ransom money quest. [republish of March 10 article by Clyde Jabin: Portland OR, Assoc Press. Photo: Payne and Tosaw examining chart on Payne’s boat.]
1982 Nov 23, UPI - “Richard Tosaw who is writing a book on the skyjacking … Water is lowest this time of year… Dragging the river and looking at wing dams… 'So far all they have found is inner tubes, tires, household appliances, pieces of trees and other articles,' he said. 'It is going to be interesting if they find anything (from the skyjacking).'Tosaw is hoping boat owner Blake Payne and crewman Bill Sweeney will either find more of the money, the bank money bag or the parachute. then he has done extensive research -- interviewing the six crew members on the Northwest Airlines Flight 305 that was hijacked on a Portland to Seattle run and other people involved in the case. He also surveyed 100 parachutists on whether they thought Cooper could have survived the jump from the rear door of a Boeing 727. He said 70 percent of those he checked believe the skyjacker could have survived frigid temperatures if he had served in the military as a parachutist, as Tosaw theorizes. 'He was in his early 40s at the time of the skyjacking, which means he would have been at the right age to be in the Korean War, possibly as a Green Beret,' Tosaw said. 'He learned his parachuting somewhere.' The attorney said his view of Cooper as a veteran was also based on the skyjacker's choice of parachutes airline officials provided. He said Cooper took a khaki-colored back chute rather than a 'more comfortable' white civilian chest chute he also was given. Tosaw said Cooper did not appear to be a 'loner' whose disappearance would not have been noticed. He said he thinks Cooper returned home after jettisoning the heavy money bag loose after landing in the river. 'He had a mother, father, girlfriend or wife who would have reported him missing otherwise,' Tosaw said. [ Clyde Jabin, UPI, 1982 Nov 23 ]
1982 Farnsworth - “In 1980, when a young boy found the $5,880 in deteriorated ransom money along the Columbia River, attorney and former FBI Agent Richard Tosaw suspected that Cooper probably landed near that site. In 1982, Tosow arranged to have the river dragged from the area where the cash was found, down to Portland, Oregon, along the jet’s flight path. A 12-foot-wide grappling hook called the “Cooper Scooper” raked the river. It pulled up a bone, rope and cloth-covered nylon, but there was no indication that the items were from Cooper’s gear or that the bone was even human.
Tosow spent a significant amount of his own money, at least $10,000, investigating the case. His search focused on the parachute. “My theory is that the parachute would be easiest to find because it’s 28 feet across and with nylon cords and a canvas harness,” Tosaw said. Tosaw also believed that Cooper had skydiving experience in the military and thus was probably a strong swimmer, too. He believed if Cooper had landed in the Columbia River, he would have been able to remove his gear and money and swim to shore.
Though Tosaw’s search was fairly thorough, non-jumpers investigating a parachuting scene may not know what to look for and may not recognize a ripcord handle or a spring-loaded pilot chute. And it’s unknown whether Cooper even deployed the Navy pilot emergency rig he wore. Furthermore, as most experienced jumpers know, even a large, cutaway canopy is not always obviously visible from an airplane or the ground, and can be very hard to find even when its general whereabouts are known. [Farnsworth article] ………..
