Number of polygons within uniquely named Inventoried Roadless Areas stratified by minimum polygon size classes
	# of polygons within a Uniquely Named IRA		Number of polygons larger than a specifed size threshold
	Low Limit	High Limit	No size limit	>= 10 acres	>= 40 acres	>= 100 acres	>= 500 acres
Eastern Mega-region	1	5	262	266	267	270	252
	6	10	24	20	15	8	6
	11	20	8	6	5	3	0
	21	50	1	0	0	0	0
	51	100	0	0	0	0	0
	101	1000	0	0	0	0	0
	Sum		295	292	287	281	258
Western Mega-region	1	5	1850	1876	1949	1999	2024
	6	10	273	283	246	186	109
	11	20	159	131	102	99	49
	21	50	78	69	51	36	13
	51	100	17	15	12	5	0
	101	1000	5	1	0	0	0
	Sum		2382	2375	2360	2325	2195
Alaksa Mega-region	1	5	57	57	61	67	73
	6	10	29	30	31	28	28
	11	20	23	22	25	32	29
	21	50	31	33	27	17	7
	51	100	8	7	3	2	0
	101	1000	2	1	0	0	0
	Sum		150	150	147	146	137
National Summary	1	5	2169	2199	2277	2336	2349
	6	10	326	333	292	222	143
	11	20	190	159	132	134	78
	21	50	110	102	78	53	20
	51	100	25	22	15	7	0
	101	1000	7	2	0	0	0
	Sum		2827	2817	2794	2752	2590