Historical Aerial Photography for Logan County, Illinois

ILHAP County Code: Z Flightline Orientation: West to East Number of Flightlines: 14 Year of Photography: 1940 Photo Index: Logan NW (3.6 Mb) Photo Index: Logan NE (3.6 Mb) Photo Index: Logan SW (3.5 Mb) Photo Index: Logan SE (3.6 Mb) Index Data: logan.zip (coming soon) Target Compression Ratio: 6:1 Average Compressed File Size: 6.93 Mb

Highlighted table cells indicate files that best delineate the county boundary. The shape of the county is distorted in the flight line direction. Links are displayed by exposure number. File names include codes for county, roll number, and exposure number.

	Flightline	West to East
N to S	1	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1
	2	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9		8	7	6	5	4	3	2	1
	3	29	30	31	32	33	34	35	36	37	38	39	40	41	42	43	44	45	46	47	48	49	50	51	52	53	54	55	56	57
	4	86	85	84	83		82	81	80	79	78	77	76	75	74	73	72	71	70	69	68	67	66	65	64	63	62	61	60	59	58
	5	87	88	89	90	91	92	93	94	95	96	97	98		99	100	101	102	103	104	105	106	107	108	109	110	111	112	113	114	115
	6	143	142	141	140	139	138	137	136	135	134	133	132	131	130	129	128	127	126	125	124	123	122	121	120	119		118	117	116
	7	144	145	146	147	148	149	150	151	152	153	154	155	156	157	158	159	160	161	162	163	164	165	166	167	168	169	170	171	172
	8	201	200	199	198	197	196	195	194	193	192	191	190	189	188	187	186	185	184	183	182	181	180	179	178	177	176	175	174	173
	9		28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1
	10		29	30	31	32		33	34	35	36	37	38	39	40	41	42	43	44	45	46	47	48	49	50	51	52	53	54	55
	11		83	82	81	80	79	78	77	76	75	74	73	72	71	70	69	68	67	66	65	64	63	62	61	60	59	58	57	56
	12		111	110	109	108	107	106	105	104	103	102	101	100	99	98	97	96	95	94	93	92	91	90	89	88	87	86	85	84
	13							112	113	114	115	116	117	118	119	120	121	122	123	124	125	126	127	128	129	130	131	132	133	134
	14							157	156	155	154	153	152	151	150	149	148	147	146	145	144	143	142	141	140	139	138	137	136	135