Johnny Boy's Walkabout Blog

Last updated 15Apr24

Are you a serious ACT trig bagger?

Lauren O, the queen of trig bagging in the ACT, is. She’s allowed me to share her current record, as at September 2023. Want to get started? Maybe the best is the Publicly accessible trigs sheet. As always, respect private property and do not enter without permission.

Download a Guide to ACT trig hunting, an Excel workbook.

Technical ACT Trig Bagging

So you want a complete list of ACT trigs to bag? I know I’m slow on the uptake, but I’ve just been pointed to a new-ish area on ACTmapi which gives both grid (UTM/GR) and geographical (lat/lon in decimal degree) coordinates for ACT survey marks. So, whether you’re an old-fashioned bushwalker using GR or a young hiker using lat/lon on your mobile apps, you can find a trig.

1. Go to ACTmapi at actmapi.act.gov.au
2. Activate the ‘New GDA2020 Survey Infrastructure’ tile
3. (OK through any layers not loading messages if the layers are not relevant – I understand there can be server capacity issues)
4. Activate the Layers link bottom left. Ensure you have Survey Control Marks GDA 2020 and Survey Control Marks ACT GRID ticked
5. Pan and zoom to an area of interest
6. Activate (click on) a survey mark. Activate the View Additional Details link. You’ll see details about the mark, including location in UTM and lat/lon in decimal degree format.
7. Pop that in your navigation device and go bag a trig!

Of course, some ACT trigs are on private property. A line from the non-PC ‘Adventures of Barry MacKenzie’ applies – “how would you like someone frigging about on your front lawn” without permission?

ACT Trigs

Photos are available.

Here’s a list of 105 trigs/structures regarded as trigs in the ACT.

Here’s the gpx file of ACT Trigs.

The entries are sourced from:

(a) A List of Standard Grid Co-ordinates of Beaconed Trig Stations and Other Features Compiled as a Field Aid, 2nd edn 1979 (less Other Features and Trigs in NSW);
(b) A List of Standard Grid Co-ordinates of Beaconed Trig Stations and Other Features Compiled as a Field Aid, 3rd edn April 1985 (less Other Features and Trigs in NSW);
(c) Trig points know by me from maps, etc.
(d) From ACT Survey Office via Lauren O. But not listed in (a) or (b)
*94 in the ACT, which includes Ainslie and the ABC transmission towers (this number was sent via email, however they actually agree with 101 on our lists)
*The ACT list includes some in NSW which are managed by ACT (I have not included these)
*Some of the trigs are unbeaconed, but still count because they have ‘proper’ names
*The NmC ones don’t count
*Some are in the ACT, but not in the ACT trig book eg. Palmer and Rob Roy. They are likely in the 1891 NSW trig book as they predated ACT borders
(e) Geocache GC5MCG0 Corin’s Crown

Are you a serious trig bagger? Here’s a comparative list prepared by Lauren O in November 2017.

And here’s a map (show in full screen for best results):

Trig	Height (m)	Location (UTM 55H MGA94) Source	Date Visited	Photo
1 ABC Masts
2 Ainslie	850	(a), (b)	many times including 15 Oct 22 12 Oct 22 1 Oct 22
3 Amungula	915	711135-6092604 (a), (b)	30 Mar 24 28 May 13 18 Jan 11 9 Nov 10* 2 Aug 06
4 Arawang	765	685878-6084365 (a), (b)	18 Feb 23 4 Sep 22 12 Oct 13 11 May 13 16 Jun 12* 29 May 11 29 Dec 08 14 Oct 07 13 Aug 05 26 Apr 04
5 Atkinson	765	710650-6088466 (a), (b)	28 May 13*
6 Bald	899	717750-6090607 (a), (b)	28 May 13 18 Jan 11*
7 Baldy (on private property)	757		27 Oct 13 2 Jul 13*
8 Barnes	824	683512-6075432 (a), (b)	24 Apr 22 24 Jun 14 20 Jul 13 6 Jul 13 29 Nov 09 4 Aug 07 14 Jul 07*
9 Bendora	1148	666708-6080732 (a), (b)	22 Apr 17 18 May 13*
10 Big Monks (was on leased land, but confirmed 2/2/15 that it’s now back in the CNP))	916	691236-6071328 (a), (b)	28 Nov 22 23 Nov 22 21 Aug 22 many times, as it’s now in my backyard 29 Jul 17 25 Jul 17 21 May 17 9 Aug 14 9 Jul 13 4 Aug 09 8 Feb 06*
11 Bimberi	1913	662077-6052360 (a), (b)	5 May 19 31 Mar 18 6-7 Nov 16 16-17 Oct 16 23-24 May 15 25 Apr 13 5-6 Apr 13 4 Feb 12 12-14 Sep 06*
12 Black Hill (Murray)	868	677316-6083175 (c) Marked on 1st edn Tidbinbilla  1:25000 map as Murray 868	6 Jul 13*
13 Blundell	1047	666488-6087810 (a), (b)	10 Dec 13 11 Oct 11* 13 May 08
14 Boboyan	1459	679650-6036532 (a), (b)	9 Mar 22 29 Aug 17 6 Jul 14 21 Jun 14 22 Oct 13 22 Oct 11 5 Mar 11 16 Jun 09* 1 Jul 08 1 Apr 08 25 Apr 07 21 Jun 06 10 Jul 04
15 Booroomba (on private property)	1012	681650-6069923 (a), (b)	14 Sep 13 17 Jul 07*
16 Booth “Did you check the Parks & Cons repeater station on the summit? It was put there in 1986 and is still original, so might be a heritage site by now” from Don Fletcher comment on CBC FB post 30Aug22	1584	684553-6044209 (a), (b)	5 Aug 17 22 Feb 14 31 Oct 06 19 Aug 06* 26 Jul 06
17 Brett	881	682376-6079002 (a), (b)	24 Jun 14 20 Jul 13 29 Jan 11* 30 Jun 07
18 Brown	719	680536-6088928 (a), (b)	23 Jan 14 29 Jun 13*
19 Bullen	757	678812-6085130 (a), (b)	6 Jul 13* 16 Feb 05
20 Bulls Head	1368	664735-6082700 (a), (b)	18 May 13 6 Dec 11* 4 Jan 11 2 Feb 10
21 Castle Hill (on private property)	942	684426-6071676 (a), (b)	4 Oct 14 6 Jul 13 28 Mar 10 6 Aug 06* 11 Sep 05
22 CE1	547	676938-6089479 (b)	18 Jun 13*
23 Clear	1603	686357-6027823 (a), (b)	13 Oct 18 14 Oct 17 15 Aug 15 15 Oct 13 21 Aug 12* 27 Oct 09 14 Sep 05
24 Cohen	918	712848-6091820 (a), (b)	25 Jun 13 28 May 13 18 Jan 11*
25 Condor	736	672985-6088677 (a), (b)	6 Sep 16 18 Jun 13*
26 Cooleman	727	684420-6085692 (a), (b)	18 Feb 23 4 Sep 22 12 Oct 13 11 May 13 16 Jun 12* 29 May 11 29 Dec 08 13 Aug 05 26 Apr 04
27 Coree	1421	664567-6091358 (a), (b)	15 Jul 17 13 Feb 16 8 Jun 13 30 Sep 12 31 Jul 12 25 May 10 7 Jul 09 2 Sep 08* 19 Feb 05
105 Corin Dam A ‘private’ trig Geocache GC5MCG0 Corin’s Crown made mention of a trig. The ACT Office of the Surveyor-General believe it could be a private trig. Lauren, Jasmine and I visited	1070+	666896-6066277 (e)	19 Nov 17*
28 Coronet	1494	667815-6053115 (a), (b)	28-29 Oct 17 8 Apr 17 25 Jul 15 21 Oct 14 19 Nov 13 22 Feb 11* 11 Aug 09 30 Oct 07 5-6 Nov 05
29 Cotter	920	670303-6083302 (a), (b)	2 Oct 22 1 Jul 17* 20 Aug 13 18 Jun 13
30 Crace (on private property)	622	694355-6099543 (a), (b)	30 Jul 22 22 Aug 13 2 Jul 13*
31 Davidson	750	692317-6087541 (a), (b)	13 Jun 22 12 Feb 15 12 Oct 13 19 May 13 3 Feb 13* 18 Dec 11 8 Jan 11 1 Jan 09 13 Aug 05
32 Deadmans Hill	1317	681924-6062200 (a), (b)	2 Nov 22 22 Aug 16 13 Aug 13* 8 Dec 04
33 Dowling	763	673511-6095073 (a), (b)	11 Sep 22 30 Mar 13 6 Mar 12 *
34 Duntroon (on private property)	638	701093-6088490 (a), (b)	10 Aug 13
35 Fitz (on private property)	1000+	682261-6055332 (a), (b)	22 Oct 13*
36 Forster	688	683465-6082440 (a), (b)	28 Jan 18 23 Jul 13*
37 Franklin	1646	661119-6071682 (a), (b)	10 Dec 16 16 Jan 16 30 Apr 13 2 May 10 1 May 10 16 Jan 10* 15 Oct 08 6 Nov 07 17 Apr 07 15 Mar 06
38 Gigerline	834	690072-6066532 (a), (b)	14 Feb 17 9 Jul 13 10 Mar 12 4 Aug 09*
39 Gingera	1850+	661256-6061567 (a), (b)	21 Jan 23 26 Mar 22 20 Mar 22 11 Nov 17 14 Jun 17 5 Nov 16 9-10 Jul 16 16 Aug 14 1 Feb 14 15 Jun 13 30 Jun 12 15-16 Oct 11 28 Jun 11 30 Apr 11 5 Feb 11* 12 Jun 10 19 May 09 14 Apr 09 21 Mar 09 17 Mar 09 3 Jun 08 4 Jul 06 25 May 05
40 Glade (on private property)	670	701165-6096315 (a), (b)	10 Aug 13*
41 Goodwin	612	683920-6101951 (a), (b)	22 Aug 13 10 Aug 13*
42 Gooroo	750+	700038-6104185 (d)	13-14 Jan 23 5 Dec 22 8 Oct 22 10 Oct 09* 17 Jan 09
43 Greenwood (Majura Range/ Goorooyarroo NR (administered by NSW and closed to public)	875	704112-6098989 (d)	10 May 11*
44 Gudgenby	1739	672652-6039656 (a), (b)	19 Sep 17 3 Apr 16 10 Oct 13 8 May 10* 30 Sep-2 Oct 06 12 Nov 05
45 Harcourt	693	689665-6104833 (a), (b)	2 Jul 13*
46 Hardy	964	672415-6085569 (a), (b)	1 Jul 17 18 Jun 13*
47 Kelly	1820+	669851-6046039 (a), (b)	18-19 Oct 14 14-16 Mar 14 13-14 Jul 13 7-8 Jul 12* 19 Sep 09 15 Dec 07 21-22 Jul 07 9-11 Dec 06 8-9 Jul 06 22-24 Apr 06 2-3 Jan 06
103 Kowen Forest Fire Tower		(a), (b)	10 Jun 08*
48 Lanyon (on private property)	746	688583-6072562 (a), (b)	9 Jul 13*
49 Mahon (on private property)	612	697509-6087006 (a), (b)	28 May 13*
50 Majura	890	698490-6098390 (a), (b)	15 Oct 22 12 Oct 22 25 Sep 22 10 Jul 22 27 Oct 13 6 Sep 13 23 Aug 13 3 Jun 13 23 Jun 12* 19 Jan 12 27 Oct 11 1 Dec 10
51 McCormack (on private property)	891	688282-6059873 (a), (b)	22 Oct 13 25 Sep 12 3 Aug 10*
52 McDonald Ecce	788	676552-6091181 (a), (b)	22 Sep 22 18 Jun 13 8 Jan 08* 23 Dec 05
53 McKeahnie	1496	669766-6063766 (a), (b)	26 Aug 17 10 Jan 17 11 Jan 14 12 Dec 12* 4 Mar 08 6 Jan 07 22 Sep 04
54 Melrose	764	693845-6076168 (a), (b)	16 Oct 22 27 Aug 22 9 Jul 13* 9 Sep 06
55 Mike	626	698428-6083269 (a), (b)	29 Jun 13*
56 Miowera (on private property)	856	681037-6076430 (a), (b)	20 Jul 13 14 Jul 07*
57 Narrabundah	689	683792-6087686 (a), (b)	18 Feb 23 4 Sep 22 12 Oct 13 11 May 13 16 Jun 12* 29 May 11 29 Dec 08 13 Aug 05 26 Apr 04
58 NmC 105	1365	676828-6058342 (c)	19 Oct 19 23 Nov 13 2 Jan 07 31 Dec 05 29 Jan 05*
59 NmC 106	1327	675610-6054657 (c)	26 Jan 16* 14 Jan 14 26 May 12 4 Apr 09 5 Aug 08 21 Nov 06 9 Aug 06 22 Oct 05 20 Aug 05
60 Oak (on private property)	798	695802-6109113 (a), (b)	21 Dec 13 27 Oct 13 26 Sep 09 28 Jul 09*
61 Oakey	684	687943-6087541 (a), (b)	4 Sep 22 3 Aug 13 11 May 13 16 Jun 12* 8 Apr 04
62 Old Joe	813	699415-6103207 (a), (b)	15 Mar 23 5 Dec 22 8 Oct 22 27 Oct 13 15 Apr 12 10 Feb 11 10 Jul 10* 10 Oct 09 17 Jan 09
63 One Tree	876	690522-6109197 (a), (b)	13-14 Jan 23 22 Nov 22 20-21 Oct 17 21 Dec 13 27 Oct 13 2 Jul 13 26 Sep 09*
64 Orroral	1609	674901-6053719 (a), (b)	17 Aug 19 8 Oct 16 14 Jan 14 26 May 12 4 Apr 09 5 Aug 08 21 Nov 06 9 Aug 06 22 Oct 05 20 Aug 05*
65 Orroral Ford (on private property)	910+	680361-6051677 (a), (b)	7 May 13*
66 Painter	742	687747-6095143 (a), (b)	17 Jan 23 12 Jun 22 18 Jan 14 12 Dec 13 22 Aug 13 1 Jul 13 20 Jul 09*
67 Palmer
68 Percival	662	690916-6102993 (a), (b)	23 Oct 22 23 Jul 22 22 Aug 13 10 Aug 13 25 Oct 09*
69 Pialligo (on private property)	570	698436-6090081 (a), (b)	10 Aug 13*
70 Pierce	1363	672657-6080390 (a), (b)	15 Apr 24 2 Sep 14 20 Aug 13 1 Nov 11 29 Oct 11 2 Oct 11 17 Sep 10* 12 May 09 20 May 08 29 Mar 08 15 Jan 08 5 Dec 06 4 Aug 04
71 Pine Ridge (on private property)	657	681371-6098223 (a), (b)	10 Aug 13*
72 Plains (on private property)	590	700911-6094903 (a), (b)	10 Aug 13*
73 Poppet	918	709060-6094353 (a), (b)	28 May 13 9 Nov 10* 10 Jun 08 2 Aug 06
74 Quartz	602	696195-6084491 (a), (b)	25 Jun 22 29 Jun 13*
75 Ranger (on private property)	690	681226-6092859 (a), (b)	29 Jun 13*
76 Reedy	763	705418-6090537 (c)	14 Aug 22 28 Jun 16*
77 Reservoir (on private property)	637	690175-6099353 (a), (b)	2 Jul 13*
78 Rob Roy	1094	(d)	8 Jan 23 28 Nov 22 23 Nov 22 21 Aug 22 14 Dec 21 12 Mar 16 9 Aug 14 4 Aug 09 9 Sep 06 8 Feb 06*
79 Rogers	704	687220-6102901 (a), (b)	22 Aug 13 10 Aug 13*
80 Rose (on private property)	1026	691669-6068020 (a), (b)	9 Jul 13 4 Aug 09*
81 Royalla (on private property)	801	694815-6068149 (d)
82 Stinging Nettle Hill Ecce (on private property)	561	678140-6100626 (d)	9 Apr 13*
83 Stranger	660	688891-6076604 (a), (b)	5 May 13*
84 Stromlo	782	682766-6090038 (a), (b)	23 Jan 14 29 Jun 13 29 Nov 12* 6 Nov 12 16 Jun 12
85 Taylor	858	688550-6083731 (a), (b)	4 Sep 22 5 Jan 15 2 Feb 14 8 Jan 14 4 Nov 13 11 May 13 16 Jun 12* 13 Aug 05
86 Telecom Tower
87 Tennent	1384	685331-6064039 (a), (b)	31 Aug 22 21 Feb 22 13 Jul 19 21 Jun 17 31 Jan 17 12 Dec 15 3 Jan 15 25 Oct 14 30 Jun 14 19 Apr 14 8 Mar 14 14 Sep 13 24 Mar 12* 4 Dec 10
90 TG 184 (on private property)	731	695246-6082121 (a), (b)
88 TG 26 (Urambi)	713	686646-6080385 (a), (b)	6 Aug 22 27 Feb 22 29 Sep 14 17 Feb 14 8 Feb 14 23 Jul 13 26 Jan 12 4 Sep 11* 7 Feb 09
89 TG 84 (Tuggeranong Hill)	855	691280-6074661 (a), (b)	1 Jan 23 27 Aug 22 quite a few times, as it’s now local for me 5 May 13 3 Jan 09*
91 Tharwa (on private property)	657	687350-6067520 (a), (b)	9 Jul 13*
92 Tidbinbilla (Peak) (1st class timber beacon burnt 2003)	1561	670681-6076920 (a), (b)	15 Apr 24 30 Sep 23 11 Feb 23 16 Nov 22 14 Sep 22 31 Jul 19 17 Oct 17 28 Jun 17 24 Jun 17 27 May 17 13 Jun 15 30 Sep 14 16 Nov 13 24 Apr 12 18 Dec 10 2 Nov 10 23 Aug 08 29 Mar 08* 24 Jun 06 20 Jul 05 22 Jun 05 13 Jun 05 13 Sep 04
93 Tuggeranong	630	688685-6079373 (a), (b)	23 Jul 13*
94 Uriarra	951	669581-6091841 (a), (b)	18 Mar 23 10 Dec 13*
95 Walker (on private property)	645	677991-6095231 (a), (b)	29 Jun 13*
96 Wanniassa	809	692097-6081474 (a), (b)	20 Dec 22 29 Nov 22 19 Jun 22 11 Jan 16 22 Dec 14 23 Jul 13 24 Jan 12* 13 Aug 05
97 Wrights Hill	1345	677475-6025678 (a), (b)	30 Aug 14 22 Oct 13 13 Apr 10 24 Jun 08*
98 YA 90 (YA 90 is NOT Sheaffe trig)	810	692590-6084421 (a), (b)	17 Sep 22 12 Oct 13 15 Jul 13 17 Feb 09* 13 Aug 05
99 Canadian Flag pole		(a), (b)
100 Carousel (Red Hill)		(a), (b)
101 Capital Hill flag pole		(a), (b)
102 City Hill flag pole		(a), (b)
104 US War Memorial		(a), (b)