Simmons 003 Mt. Baldhead Gap Filler Radar Annex and views from Mt. Baldhead Index text: 3 7/8 bw Saugatuck - Baldhead Radar, View from Baldhead Since the radar has no dome the image is from between 1958 and 1963 From photographic negatives created by William R. Simmons, editor of the Commercial Record newspaper between 1941 and 1961. More information may be in the 2001 SDHS book "Off the Record" Kit's notes: "003 Radar, view from Baldhead – radar installed in 1956 – part of Aircraft Control and Warning system, Saugatuck Gap Giller Annex PIN 5521. Men stationed there for about 8 years. Dome installed in 1964. Deactivated in 1968. Closeup"

Hardbound pocket guide covering defense work for men and women, defense at home, air raid protection, first aid, wartime information and index. 94 pages with silhouettes of warplanes on the end papers. Reviewed by the U.S. Office of Civilian Defense,

Also referred to by radar technicians as the PPI, or Plan Position Indicator, this unit displayed what the radar was “seeing.” The unit assisted technicians during regularly scheduled maintenance every few weeks or when the radar reported malfunctions to Ft. Custer, near Battle Creek. Azimuth is the direction to a “target” — an aircraft detected by the radar — and range is the distance. The handwritten note masking-taped to the fold-down counter lists the azimuth and range to permanent echoes [PE] of large fixed objects — such as dunes, hills or smoke stacks — which the radar consistently observed. Technicians used this information to calibrate the radar and verify its accuracy.

Compact disc #1 dated June 30, 2022 containing the National Registry of Historic Places draft nomination for the Michigan Allegan County Saugatuck Gap Filler Annex. MI_Allegan County_Saugatuck Gap Filler Radar Annex, Draft 3 06-30-22.pdf

CD containing full size (about 5MB each) and reduced versions (about 300KB each) photos of the Mt. Baldhead Radar Annex taken in 2017 by Chuck Gustafson using a Cannon 60D camera w/ EFS 18-135 lens Also photos of radar parts that had been removed from the site by R.J. Peterson and were in the lunchroom at Tower Marine in 2017. Those parts were later donated to the SDHC and are on display at the Saugatuck-Douglas History Museum. For comparison, images 4729 thru 4740 are of privately owned AN/FPS-18 radar at Emery, MI, just north of Ann Arbor. This is currently one of two gap fillers, other than the one here at Saugatuck, that still have tower and antenna and may (or may not) have equipment remaining inside.

CD of 52 photographs of the exterior and interior of the Mt. Baldhead Radar Annex taken by Elliot Sturm in 2017.

A boy stands outside the fence of the radar installation atop Mt. Baldhead. The tower does not yet have its fiberglass dome. A sign on the chain link fence, that is topped with barbed wire, says "U.S. Government Property KEEP OUT"

FST-1 Coordinate Data Transmitter from Mt. Baldhead radar station

Documents pertaining to the successful 2022 addition of the Saugatuck Gap Filler Annex to the National Registry of Historic Places. Including James Schmiechen's notes from a 2016 Tuesday Talk about the radar station CD with SHPO suggestions to improve the nomination paperwork. 2023 letter from Michigan State Historic Preservation Officer confirming the addition. Draft nominations, preliminary questionnaire, notes, emails The Battle of Saugatuck Gap Cleanup Planning Analysis by ECT Environmental Consulting & Technology, Inc., 2014 Structural Analysis by Alan E. Kolba, 1997 Conceptual master plan for Mt. Baldhead Park, undated Print outs from www.radomes.org